Apologies for saying this as I don't mean to offend, but what a strange question...!
I've never drunk alcohol all my life and my Saturday nights are just like everyone else's, why would it be different? If I go out, I socialise.....friends, parties, staying over, whatever. If I'm at home, I watch TV, have a nice supper, go shopping, catch up with work, do hobbies, curl up and read, go to bed early or have friends over.
I can't see how having a glass of wine or a few shots would make the slightest difference to any of that?? If I'm with friends or having a dinner party, they drink if they want to, I have a non-alcoholic drink but no-one notices and I never give it another thought, to be honest.
If things really "aren't the same" if you're not having an alcoholic drink, I'd be asking whether I wasn't a bit over-dependent on the alcohol....