My 16 yo DS has taken what he thought was a paid job at our local swimming club as a poolside helper with a view to doing his coaching qualifications. He had to do his DBS and a 3 hour safeguarding course in his own time. He has done his first month (2.5hours/week) and asked when he was getting paid. He has been told it’s voluntary for 6 months and after that they will decide whether to take him on at £8/hour. It was never mentioned in any of the email correspondence that it was unpaid. He did not sign a contract and got the gig because he used to swim at the club and reached out to them. AIBU to expect him to be paid for the hours he has done and in thinking this is very exploitative as it would seem the only way into coaching is to work for free for 6 months. Is it even legal?