I have a brother who used to do that for us two girls whenever the need made it mandatory. Our mother would give him .50 cents and send him down the hill.
Of course, it was only 50 years later that we found out he was a PRE-vert.... So that probally ‘splains it all...
I suppose nobody has thought about how girls with “two dads” are supposed to get help with all of this, including just getting used to the idea.