It’s fine. Miniature wargaming is going to be just fine. Check out this fantastic kid banging out videos like a boss:
If you’re on the Youses and the Tubeses, and you’re worried about “the graying of the hobby”* why not throw the kid a follow to encourage him to keep it up? He’s just starting out on his journey, and every little bit of support helps.
That’s something new. For something old, here’s a great little clip that highlights the special effects used in (what I believe was) the first ever on-screen appearance of the Space Marines: