it's natural for people to feel pressure around the ones they seek acceptance from.
It means he's intimidated by your family and doesn't want to screw up around them. He's obviously comfortable around you. It's perfectly normal and understandable.
i might be wrong but (I'm a girl) normally when i get nervous around a boy i normally like them or is scared of you but i mostly find if i am nervous around boys then i have a crush on them i hope this answers your question
no but do you ?
He's only nervous because he wants you to like his family and his family to like you. If him being nervous is upsetting you, then talk to him about it. Tell him to be himself, calm down, etc.
Your crush is the one that always smiles when your around
This is an opinion, but in-family relationships are not encouraged.
some are intimidated some are not
It could mean your crush likes you and does not want to appear foolish in front of your family. Some individuals are sensitive, and fear rejection or disapproval, and are only comfortable with people that they know and can rely on to accept them.
We don't know. You should ask your crush to explain it to you.
"The big scary butterfly intimidated me."
No, Canada is not intimidated by the US ( we are sometimes amused)
Do not ask about that family.