Originally Posted by travelmama

Yes it is if he doesn't know how to swim properly.
I second what was said about joining a Masters Swim Program. To join a team is not embarrassing especially given you are taking lessons. Embarrassment in the pool only comes from those with zero self confidence. Kicking hard should only be done if sprinting. Since you are looking at a half mile swim, you should be relaxed and use your arms for the majority of the swim. A slight kick should be done to keep you streamlined and bouyant. I swim 5 to 6 days per week and rarely kick while swimming because I am all about the arms.