I would like to see BBFC ratings on everything as it will open a lot of parents eyes to what is suitable for the minors. When I worked in one of the better known videochains there were parents getting games for kids that wern't suitable as they didn't have a proper certificate on them.
I pointed out to a few people and explained the recommended ratings to them as they were blisfully unaware. I found it was the older parents that wernt to sure on what exactly was suitable unless a title had a BBFC cert on it.
Like one of the posts mentioned here, me and my wife are very careful what we let the kids watch and play. Just because one 12A title is suitable it doesnt mean they are all suitable. We let them watch the X Men which have 12 certs and they understand the good and bad and that it is fantasy. However, we will not let them watch Hellboy which is also a 12 due to it being quite gruesome and the underlying fact that Hellboy is devil related.
It is a fine line that is drawn a lot of the time I find. You can go to far with censorship. If minors dont get it from film and media they tend to get it from schools and public places. As long as parents care and do their best for their children and are sensible with decisions in what they watch and play there isnt a problem. We dont need someone preaching to us telling us how it is with censorship.