I get notices in my mailbox every few weeks advising that my neighbourhood route is available. Quite frequent turnover and very often delivered by adults. Kids don't want to break off after-school time to do it.
My son did it regularly for something like four years and has now passed the route to his younger sister. They do it for a tiny wage and to keep me off their back for not having some sort of paid work/regular responsibility outside of chores and school.
Of course I have been told I am a bad person because I insist the kids do their chores before they get their allowance so my opinion may not be worth much.