Which is awfully close to the depth limit for a 13 year old diver. Sounds like it'd work great for him now and could be upgraded with the housing in the future as his diving progresses into deeper water. Yah, 50 feet isn't 60 feet, but I'd be shocked if it was actually an issue.Yes, if I could have a personal 24/7/365 limo service for the same price as kia micra I'd take it, but for some strange reason that never happens in real life. You said yourself you have to buy a housing for TG5 to go below 15 metres.
What you are getting is what seems to be a much better camera for less out of pocket, but with a depth limit that isn't really a problem in this scenario.