I truly don't think you're old until you hit your 70's+. Most friends you knew from childhood or co-workers start dying off (well before then) along with family members.
What if I just simply said, Idgaf to stop argument purposes. It's mostly these early to mid 20 somethings pushing the "if you're 30+ and still online" you "old" BS narrative [thank the idiots of Twitter for pushing that dumb ass logic]. I'll be 36 in April and Idgaf what these young dumb & full of cum b*stards think about me being 30+ and online. Life doesn't stop at 25-30+.
I will admit even with some thread topics on coli and (some social media platforms) I do feel out of place at times. So I try to stay in my lane although, I pay the internet bill at my address so I'm going to log on w/e site I want to when I feel like it.