Car seat issues

[Indadhanu]

Moral quandary here...

Car seat issues. You see a friend putting their children into an obviously unsafe car seats. I'm not talking forward facing v rear facing, I'm talking serious safety issues. Loose twisted straps, car seats too big or small for the child, using blankets and pillows that would cause issues in a crash. Things that even the manufacturers recommended against, and things that would probably get them in a lot of trouble if they were pulled over by the police and the car seats scrutinised.

Do you say something? What if you didn't see them in real time, but you saw pictures of the children in the car seats that were totally unsafe? In real time would be easier, as I'd probably jump in the back and subtley say "here lets fix those straps, don't you hate it when they twist/come loose etc" but pictures are harder because you have to be a lot more direct...
I should mention it's a friend that I only 'talk to' and 'see' on Facebook ... Not a friend I see IRL as we live too far away from each other... An even stickier situation...

I don't want to offend but I also think to myself, what if the person doesn't know that it is unsafe? And then they had an accident, and the children were injured, or worse, and I didn't say anything? I'd feel somewhat responsible for not making sure that they were at least informed about car safety, so they could make informed decisions about which car seats to use and how to use their car seats.

My next question, if I do say something... HOW? How do I say this without offending? I think they are the type of person to be easily offending, and probably take it as an attack on their parenting, and since they have been a parent much longer than me I'm sure I'll get the "well I've been using it like since since x was born and my kids are fine..." or "I think I know how to use a car seat/be a parent" (when they clearly don't... know how to use a car seat that is).

It's been on my mind for weeks, and I can't stop thinking about it. I don't think I can stand not saying anything, not because I want to be a nosey *****, but because I just keep thinking "if something happens, I haven't said anything, what if those children get hurt?". I feel responsible because I *know* it's an issue, and it's not just an issue in my mind under my own judgements and views, it's a serious safety and legal issue...