You have a good conversation w/ said coach and be the best damn dad for your kid. If the coach doesn't think it's a problem and has justified explanation for why he doesn't think it's a problem, probaly best to heed that advice.....let's him coach and you be the dad.

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Brooks Doughtie, M.S.
Exercise Physiology
-USAT Level II

At the age of your daughter, they have a lot of flexibility, small size and low power, but the power relative to size is still good. But Butterfly does have some physics in terms of drag, vs propulsion. While your daughter may be lifting her head high now (probably lifting head up late rather than early see image below) coach probably thinks that as power comes with age that goes away.



Head is alread moving downwards as hands move forward....her head may still be up at this point which is too late. It needs to already be looking forward while underwater at the cross on the far wall of the pool so that as the body undulates up, the breath can be taken as soon as mouth clears water






Then head goes back in quickly



As she generates more power from core and legs, I would think this will come naturally because of the forward velocity and associated timing, which is probably why the coach is not worrying yet.

cool thanks

Awesome thanks Paul, some great tips!