As a 22 yr old is it okay to date or be with a 19 yr old guy?

My friends are into older guys so they really hate and criticise the idea of me and a 19 yr old guy!

but its okay for guys who are 22 to date 19 yr old girls but its not okay for us to date 19yr old?

help?

As a 22 yr old is it okay to date or be with a 19 yr old guy?
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