Why don't young girls notice me anymore?

I followed many peoples advice and started going to the gym to become more attractive to girls. I'm now at ~200lbs, 11-12% bodyfat, yet it seems like young girls don't even notice me. Actually even my age is rare, it's more 30 year old's and even older.
Thank you very much those that said that lifting is a good idea to get girls.
Why don't young girls notice me anymore?
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