"Not especially," Tony said honestly. Because his childhood hadn't been great by any measure unless having money counted (and he was aware, yes, that sometimes it did, but in this instance he was going to say it didn't). "But it got better."
Tony didn't really know why everyone was keeping it a secret from the kids -- that they hadn't always been that way, and that just a few days prior they'd been a different age altogether. Probably because it felt easier, because explaining something like that to children was complicated and difficult and would be hard to really fathom. But Tony -- the younger version -- was clearly struggling here, and he felt like, maybe, if the situations were reversed, he'd be mad if no one had told him.
"Modified arc reactor," he said after a beat, pulling up a new display for Tony to see. "It's good for a lot of uses." He figured it'd be, if nothing else, a very familiar design. An intro into this new conversation, maybe. "You are smart, and you know it. Not being able to remember something isn't the same as not knowing it. Your dad isn't here, or your mom, or Jarvis. And you're usually a little older. Anyway. I didn't introduce myself, did I?" He held out his hand for a shake, even though he wasn't usually fond of that sort of thing. "Tony Stark."