At what age should a father stop showering with his daughter?

There is no time a father should shower with his daughter at any age! It's OK to help bath your daughter up to the age of 4 - 5 years of age, but more often than not the mother does this. Some mothers will have a bath with their young daughters, but by the time the daughter is 6 years and up they deserve their own privacy. I would tell your mother that your father is showering with you. It simply isn't right!