Most children need help and they take it quite slow,
It's only done once by the man on the go,
The carefullest sort do it twice in a row,
Before going out in the rain or the snow.
My hazard of a guess is:
Kids need help with it
if you are rushing you don't have time for proper double knotting.
Double knotting is what the careful folk do
This is where it gets tenuous: snow boots often have laces. Stereotypical rain boots less so but...
An everyday task: It is often portrayed as something one does when they get ready to go out the door each morning.