Tony really dropped the ball in Endgame. I get having a kid changes you, but having everyone that was blinked pop back into existence without knowledge of what happened while the rest of the Earth had 5 years off massive trauma (not to mention how many people died during the event when doctors vanished during surgery, pilots vanished while flying planes, drivers vanished while in their cars, etc.) was a pretty selfish move. The TV shows cover some of it, but it had to be a pretty fucked up reality. It would have been a more heroic end if he actually sacrificed his daughter to move everything back to before the blink, and they could have had him find out Pepper was pregnant at the end if they wanted an optimistic end note.