What is the purpose of original sin?

My question is primarily aimed at Catholic/Protestants, but any denomination who believes original sin can answer Using wikipedia's definition of original sin: >condition of **sinfulness that all humans share**, which they inherit from the Fall of Adam and Eve, involving the **loss of original righteousness** Council of Trent: Fifth session : >[Adam], being defiled by the sin of disobedience, has only **transfused death**, and pains of the body, into the whole human race, but not **sin also, which is the death of the soul** God created Adam/man (Gen 1:26-27 , Gen 2:7-8 ) without sin My understanding of man's purpose on earth from a Catholic1/Protestant viewpoint is to glorify/worship God and eventually return to Him in heaven. It is also my understanding that both denominations believe in creation ex nihilo. If our purpose is to worship God, why doesn't mankind have the same opportunity as Adam? My understanding of beliefs 1. God creates out of nothing (can create anything) 2. God can/has create man without sin (Adam) 3. God wants man to worship/glorify Him and eventually return to Him (need to be sinless) 4. God creates mankind with sin (because of Adam) So my question is why for #4 does he create humanity with original sin by default (Wouldn't we still sin regardless, like Adam did)? Why don't we have the same opportunity as Adam to start fresh? Doesn't this contradict Eze 18:20 ? Related: - Inheritance of Original Sin (how transmitted-I'm asking why) - Does God punish people for their ancestors' sins or not? (reconcile with Ex 20:5 not about original sin) - https://christianity.stackexchange.com/q/5530/22319 (again I'm asking why aren't we created like Adam) - Why would God give us the ability to sin if he doesn’t want us to? - Not sure the answers are addressing my question, not trying to call them out just point out the difference between my question and the answers here (reference by user to clarify between answers) - <a href="/redirect?url=https%3A%2F%2Fchristianity.stackexchange.com%2Fa%2F111203%2F22319" class="external-link" target="_blank" rel="nofollow noopener">answer 1 <i class="fas fa-external-link-alt fa-xs"></i></a>: we'd be robots (Adam wasn't, why can't we start like Adam) - <a href="/redirect?url=https%3A%2F%2Fchristianity.stackexchange.com%2Fa%2F111227%2F22319" class="external-link" target="_blank" rel="nofollow noopener">answer 2 <i class="fas fa-external-link-alt fa-xs"></i></a>: we'd be animals without sin (Adam wasn't), Adam rebelled against 'servanthood'/creation (Adam might've (not 100% sure of the logic/explanation), why isn't the same opportunity extended to us) - <a href="/redirect?url=https%3A%2F%2Fchristianity.stackexchange.com%2Fa%2F111365%2F22319" class="external-link" target="_blank" rel="nofollow noopener">answer 3 <i class="fas fa-external-link-alt fa-xs"></i></a>: points out some supposed fallacies of the argument, #3 is kind of my question if God does create ex nihilo and our purpose is to worship/glorify him, why have original sin OR #5 I don't think sin glories God so why are we created with original sin, also lists many scriptures that supposedly support sin serving His glory but I'm not seeing the connection, this explanation is getting too long-I don't see this as an answer - <a href="/redirect?url=https%3A%2F%2Fchristianity.stackexchange.com%2Fa%2F111223%2F22319" class="external-link" target="_blank" rel="nofollow noopener">answer 4 <i class="fas fa-external-link-alt fa-xs"></i></a>: premise sounds like my question but mine is why do we start off lesser (with original sin) compared to Adam with same God, same purpose. 'cannot blame God for our sinful choices'-> but we inherit original sin because of Adam...why are we created with original sin; feel like the rest is a lot of subjective claims - <a href="/redirect?url=https%3A%2F%2Fchristianity.stackexchange.com%2Fa%2F111364%2F22319" class="external-link" target="_blank" rel="nofollow noopener">answer 5 <i class="fas fa-external-link-alt fa-xs"></i></a>/<a href="/redirect?url=https%3A%2F%2Fchristianity.stackexchange.com%2Fa%2F111368%2F22319" class="external-link" target="_blank" rel="nofollow noopener">answer 6 <i class="fas fa-external-link-alt fa-xs"></i></a>: not all convinced this answered the given question - <a href="/redirect?url=https%3A%2F%2Fchristianity.stackexchange.com%2Fa%2F111381%2F22319" class="external-link" target="_blank" rel="nofollow noopener">answer 7 <i class="fas fa-external-link-alt fa-xs"></i></a>: we are not robots (but are created by God with original sin, why) - <a href="/redirect?url=https%3A%2F%2Fchristianity.stackexchange.com%2Fa%2F111207%2F22319" class="external-link" target="_blank" rel="nofollow noopener">answer 8 <i class="fas fa-external-link-alt fa-xs"></i></a>/<a href="/redirect?url=https%3A%2F%2Fchristianity.stackexchange.com%2Fa%2F112775%2F22319" class="external-link" target="_blank" rel="nofollow noopener">answer 9 <i class="fas fa-external-link-alt fa-xs"></i></a>: answers why sin allowed by God (not why are we created with original sin by God) - <a href="/redirect?url=https%3A%2F%2Fchristianity.stackexchange.com%2Fa%2F111213%2F22319" class="external-link" target="_blank" rel="nofollow noopener">answer 10 <i class="fas fa-external-link-alt fa-xs"></i></a>: starts with 'other answers feel incomplete' (I'm on the same page but does not address why created with original sin) 1 https://christianity.stackexchange.com/q/84406/22319