You specifically mention low risk in your first point but not all jobs have the same risk profile and food delivery drivers absolutely do not have the same risk

You specifically mention low risk in your first point but not all jobs have the same risk profile and food delivery drivers absolutely do not have the same risk profiles as say, a retail worker. If the spectrum of "jobs we let teenagers do" is from Kidzania to food delivery cyclist, I think it's in the interest of said teenagers to tip the balance towards Kidzania. Seriously! Roads are not a joke! Bikes don't have crumplezones! A significant minority of drivers actively target cyclists! The teenagers in these scenarios are also effectively operating under coercion when they swap with a registered driver! How could any of this be low risk?