Yeah I don't think the less able kids should be forced to do GCSE's. If they don't get 5C's then it doesn't help them cos everyone says they need a C in this and a C in that, and they then have to take really low courses in college to get onto ones that they really want to do.
Forcing them to do A Levels definitely won't work. You need 40% to pass one and the work is obviously harder at GCSE so they're hardly going to pass if they don't pass GCSE because you don't even need 40% to pass a GCSE. You probably do in higher so if it's not thought that they could pass that then they won't pass an A Level.