I feel you should have one life guard along with swimming coach specifically for children's as they sometime don't follow coach instruction and can be at risk when coach is teaching to other child and takes deep dive into water.That's the reason parents have to stay along with them during class.Also it is very difficult for parents to be with their child for 1 hour. This is really constraint I think of because I can't take out 1 hour in coming months and hence may opt out even if my child is interested.
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