My father can barely manage to turn on a computer, much less work these series of tubes, so if he ever made it to Gaia, I would be very shocked and impressed. He'd probably just get confused by everything here, since he hasn't kept up with pop culture since, like, the 80s.
My older brother is more skilled with working these danfangled computrons, but if for some reason he joined, he'd probably wander around for a few hours, then log off and never come back. He can't really sit still for long periods of time, so he'd probably get bored real quick.
My older sister would probably like this place, though. She doesn't know much about the animu scene, but she's married to a scifi geek, so I'm sure she could roll with the punches. She'd probably chat in the forums here and there, but would be primarily focused on dressing up her avatar.
And my mom... Well, my mom's been here since 2004. She even has a mule. And says that her main and mule, which are both guys, are lovers.
Yeah. rofl