I am astonished at some of the people who are astonished that ERF is a thing! My eldest is 11 and the information was certainly widely available then. There are people on this thread with very young children who claim to be unaware - and yet even if you don't use the internet for anything else, ever, there are very regular threads on Mumsnet about this very thing. How have you missed it?
For the very dismissive posters insisting they couldn't be so cruel as to squash their child's legs, it's time to peer outside your little bubble. Do you also ignore up to date advice about stomach sleeping, weaning, smoking around children, drinking alcohol while pregnant etc? Again, the information is very widely available.
- Extended rear facing car seats do no squash children's legs. They are designed to accommodate growing legs. Many chidren complain that their legs are uncomfortable when they switch to forward facing and have to dangle their legs.
- Rear or forward facing, children are facing the front or the back of a seat. This argument is just pathetic.
- You do not need an enormous car. A correctly fitted forward facing seat requires 55cm of space between the car seat itself and the back of the front seat in the car. If you don't have that space, it's not safe to use a forward facing car seat in the space. Rear facing car seats don't carry the same requirement so in theory can actually fit safely into a smaller space.
- There are rare cases where an issue such as car sickness or an unusual, outsize child can mean it makes sense to forward face earlier than is ideal, but this doesn't make it safer for a child in an accident.
If you are lucky enough never ever to be in an accident then perhaps putting any thought into it is a waste of time - but then of course if we knew things like that then insurance, seat belts, car safety in general wouldn't even exist as a concept... Let's be clear, no-one's talking about forward or rear facing car seats having an impact on car safety for everyday, accident free driving (for all of the 'I turned mine forward facing at 9 months and they were fine' brigade). The point is what happens if the worst happens. and the evidence is incontrovertible. Serious accidents are fortunately rare, but you don't want to be the person who has the worst happen and have to spend the rest of your life wondering if you could have taken better decisions that would have protected your children more comprehensively.
Rather than scoff (I can't think why you would? Do you take it as an implied criticism because you didn't educate yourself? I don't know), if you are parents, grandparents, childminders or anyone else who may carry a child in their car, it behoves you to take whatever action necessary to keep that child as safe as possible. If you decided to forward face at a young age because you have weighed up the information and for whatever reasons (car sickness being one of them), that's fair enough. But please don't come out with bollocks about squahed legs or boredom from a view of the seat justifying that being a safer choice in any way, because it isn't.