Why is it harder to find a partner after your 30s?

Hi. I'm 35 yo, and I'm experiencing hard times to date a woman. Despite that, just 10 years ago I had a lot of girls available. What happened? 

Where are you from? 

Where are you from? 

villerose

Ok, guru, where should I

Ok, guru, where should I look?

landy520

Probably you're looking in

Probably you're looking in wrong places? 

seadbed8cj