All American children from 5 to 17 are obliged to attend school. That was not the way it was in Our Lords time. He spoke of them forming and un-forming groups that made nuisances of themselves. They went about taunting adults who gave them anything to make fun of.
They made fun of John the Baptist and his followers for living on nothing but locust bugs and the honey they could scoop from the hives of wild bees.
They made fun of Jesus and his followers for accepting dinner invitations from people who had wine with their meals.
Are you a fault picker who finds short comers with everyone, or are you reluctant to find fault with any of the children of God that he sends your way?