I remember in 1986 when this became law in Illinois...the promise was that there was no fine except in the case of a stop for other reasons. Big Lie. It is a slippery slope when government tells you what you can or can't do with you.

You Didnt Think It Would End With Seat Belts. . . Right? by Eric Peters

lewrockwell.com

Mandatory buckle-up laws set the precedent: Even your own body in your own car is no longer your own personal space.