to xxxpert999 :We took a more laid back approach, nudity as a natural way of life, and the same for sex - sex is between my wife and i and daughter is free to join us if she wants to. My wife taught our daughter how she masturbates me. She used to giggle when i orgasm and ejaculated with semen flowing onto to her little hands.
to xxxpert999 :Training should start when single digit age. Casual nudity as a family lifestyle, sharing shower and free to handle your penis and understanding how you get an erection if she strokes your penis - etc.