Age has nothing to do with it,as long as your clean,mannerly and respectful,that's the most important thing.
I have seen a few ladies,where they had a age limit of no one under the age of 25,because from there experience a lot of young guys,show no respect and show up like there heading into a porno.
When i did manage to meet them,they realised i was very mature for my age,but all i did was treat them with respect and be courteous as everyone deserves to be treated.