Not really. It is not so much that they reach an age and they are ready but more that they are suffering and come to you for advice. Many men, may out of self-insecurity, push their child into PE. This, in itself, will cause more damage than if you did nothing at all. Some children will never want or need this and this needs to be respected. This is why I have said that the relationship needs to be very close in order to have the trust necessary. Maturity does not become a point when a son is introduced to PE, it is when they have a need for it.