Hi all.
I am a water baby swim instructor.
At my pool I don't like to put bubs under water until around their 4th or 5th lesson. This also depends on how bubs is.
Somedays the bubs are having a sad day , if they are teary, stressed etc I won't put them under. I also like to speak to the parents before I submerge baby.

In the weeks leading up to submerging we get baby prepared for going under water . we do this by giving cues like ready go and then a gentle lift and lower without submerging. I find most babies by about the 5th week will start to prepare on their own for submerging. However some are not ready.
If you are not comfortable with bubs going under at any time tell the instructor. At no time should an instructor force you or bubs to do something you dont want.
The main aim is water familiarity and basic skills.
And if you or bubs are stressed or uncomfy it wont happen.

We sing lots of songs and nursery ryhmes and generally have a great time. I have taken all three of my children swimming and I find its a great bonding time.
Then again I love being in the water..
Oh and don't worry what you look like, no one cares..they are all busy having too much fun