All of our children are over 18 now so in a sense we don't have children any more. We have adult offspring. One of the small implications of this is that they have let us know they no longer want to use the childish terms "Mammy" and "Daddy" when referring to my wife and I.To be honest I think they are most uncomfortable at the way my wife and I have gotten into the habit of referring to each other as Mammy and Daddy at home and in public as many parents do after years of using those names with their kids.
There is tremendous joy (and not a little relief) in watching your children mature into capable functioning adults. Nevertheless I am a little saddened to no longer be a Daddy. Daddys are magical mysterious creatures, Dads are more humdrum every day folk. A Daddy can fix anything using his mystical toolbox and his magic kisses. A Dad is more likely to break something. Daddys tell the best stories and can always make you laugh. Dads make you groan with tired old jokes. Daddys know everything. Dads know very little that is relevant to the current century. Daddys wield the enormous power of unconditional love and Dads... well actually Dads have that superpower too even if it is wrapped up in a very ordinary human person.