How to tell them? Or not to tell them?

When you see someone with a picture of a car seat that’s not being used correctly, or a newborn sleeping with a blanket, or something like that... What’s the right thing to do?

I am not the Mom police and I understand ‘to each their own’.

However, I find myself wondering if the person is aware that these are safety issues? I mean - some people just simply do not know.

So I guess my question is: how do you politely inform someone of such a thing without sounding judgmental?

Again, if they are aware of the risks and still want to continue... fine.

But I just feel the need to make sure they know, but I’d like to do so without sounding rude/judgy.

And just out of curiosity: would you want someone to tell you if something you were doing was unsafe?