I'm almost 30, but I haven't really changed since my teens. Annoyed by most people, don't have patience for children that don't behave, always preferred small gatherings over loud parties. My idea of a great time is doing nothing with people I care about and eating. Sign me up for naps. Also cats. I've always had the soul and energy of an 80 year old. I would imagine my 30s would be more of the same. You do you.
A big party once is always a good idea, just for the experience.... but then? Eh...
30s*
40s*