VF2 suggestions, eh? I love VF as it is & have lots of fun w/ the mods if I feel like shaking things up a little on my end. But on the developers end, I have a couple/three suggestions:

1. I think I agree that a little more interaction between the peeps & pets would be fun.
a. The nice, normal types interactions:
i. pet
ii. feed
iii. name the dog/cat/turtle.

b. Maybe add a few "naughty" things the little ones could do with their pet:
i. Chase the pet
ii. TRY to tug on the pet's tail. Mind you TRY would be the operative word. The little one wouldn't actually do it - because they couldn't catch/find the pet &/or for another, the "guiding hand" (aka the player) could/would stop them, just like when we catch them drawing on the wall or playing in the dirt. And naturally, it would be a behavior that they would stop/outgrow when they get to be 14 anyway.

2. Maybe occasionally have a little one skin their knee or need a mom or daddy to "kiss a booboo/bump on the head" something along those lines. I love it when the little one wants attention & you can get the parent to tell a story or tickle them.