What a breakthrough!! We finally managed to coax E out of his fear and reluctance to swim, and he emerged swimming happily. He felt more confident wearing the swim vest compared to the arm band. Both the boys jumped into the pool several times. E was very trusting and just jumped into the pool fearlessly. I still haven't figured out how to teach them swimming. In the meantime, I hope to develop their confidence in the water and send them for swimming classes later on.