Parties With New People Become Less Enticing
In Your Twenties: Parties are exciting. Maybe you're searching for your soulmate or trying to get your foot in the door at a new company or just looking for some new friends to expand your social horizons. Meeting new people is exhilarating and part of what you look forward to on the weekends.

In Your Thirties: Your social and work spheres are pretty set. Maybe you still like meeting new people from time to time, but you'd much rather hang out with those you already care about than go to party after party and make small talk during your precious time off work.