This is one of those things that is always easy to tell others to do on the Internet for self benefit. Post one sentence and guilt trip others into behaving better while not having to change oneself at all. Bravo.

I always wonder if such people who write these comments would themselves commit to a verifiable improvement of their own behaviour in public according to to the norms of others. I'd love to see it :)

Where is the guilt tripping. The advice is sound, get a car seat, consider a belt extender.