Definitely not, but you don't have to get drunk or high to party and have fun either. There's many definitions of partying. If just chilling and enjoying your life until whatever is meant to come your way does with good times and good friends is your things there's nothing wrong with that. What your future looks like is your choice entirely.

Is 35 too old to eat? No?
Then no. It's the same.

Depends on what you're using when you party.

Ermmm…… no.

Only in a frat house.