Avengers 4 leaked scene

uh tony told him to go home in civil war and iw

But Tony is the reason he was there. He took a 15 year old kid and put him in a high tech suit and brought him into combat against massively powerful superheros and assassins. It wasn't until he'd already served his purpose and gotten knocked out that Tony said to go home.

As was said by mistborn he would have died either way. Wether or not he was there the snap would have happened and he would have went poof. It's not Tony's fault at all that he died if anything she should be beating star lord and strange but no they aren't options anymore either.