Why does it feel like having no dating experience is like the worst thing you can do?

I'm almost 30 and still don't have any experience with dating and I honestly don't care or feel worried about it. It could also be my nonchalant attitude about it and my mentality all over it.

Since I have never dated anyone before I shouldn't be a red flag right, also I don't really know how to date? I stopped using apps, I try to be more social in life, and try to be with my friends more often. Couple of my friends have tried helping me look for a partner but nothing really has happened, either they're not interested or don't talk to me. Most of girls I have talked to are taken and I rarely have any close female friends. So, what should I expect from dating in my 30's compared to my 20's?