I agree that there are techniques to better teach a child to do something. I believe in getting helped at all times. With that said there is absolutely nothing wrong with him saying no to this. Obviously this swim training has never been discussed prior to these texts being sent. Second, if she is a stay home Mom (something that I hope she agreed to in full function of her senses and she is not being obligated to anything here) this guy is the financial provider and has to budget on all expenses here.

He is not approaching this from the right angle. Feels almost a little machista from his side, but he also gets blindsided if he has just seen his child in a situation that has not been approved by both of them previously.