They do for now, but once the fukctards in "government" puts the Small Claims limit up to £5000 (slated for April 17) that will likely change as in small claims each side pays their own costs so either a lawyer takes a slice of your compo or you DIY.

Do people only claim when the injury is deliberately caused?

Not at all, you just need to show that the injury was caused through negligence, or breach of duty of care.

Union is a waste of time but they provide a solicitor- as a fellow Unite member I find your attitude stinks!

Unite ARE a watse of time, the fact there are so many different Unions tells you that they're all pretty poor. All London based, execs on massive salaries etc.