Didn't realise thorpe only had particular rides on their list - now thats interesting.As for the other parks, as far as I know (for it may have changed since).Legoland - is purely for those with autism or mental health issues, so that they'd disrupt other guests in the queue. All queues are designed to take wheelchairs, so they do not get passes. The very few which cannot accomodate wheelchairs can use the exit! Though, like all systems, needs to be looked at.Chessington - had a timed based system so you couldn't ride another ride until that time. However that was only for main rides, any other they could just join it.Alton Towers - just has wristbands, each ride has an hour (or current queue time) to it, so they shouldn't be able to just reuse instantly, but can go on any ride.It's up to each individual park, and how they cope with the systems tbf. I think they should be there to improve peoples days, particularly if a queue has not been designed to be wheelchair friendly. But, it park adjusts it and tries to make it work, so hey ho!