The underlining point in doing this "at a proper age" is to resolve the social problem of sexual identity and the attached social hatred and prejudice which it has caused in the past.
We are not cut and created out the same genetics, people should be made to accept that.
One way to stop prejudice and hatred involving people who are LGBT is educating are youth in the high school age as human sexuality starts to develop.
Teach are children well so are fathers hatred will blow by.