Regarding the two graphs: There might be a large selection bias involved. I mean I do think it somehow resembles "reality", but who knows, maybe most 40 year-ol

Regarding the two graphs: There might be a large selection bias involved. I mean I do think it somehow resembles "reality", but who knows, maybe most 40 year-old men who are on okCupid are there BECAUSE they find 20 year-olds the most attractive.