Wolfman moving forward

[Wolfman]

Question for everyone. My s 11 wants to play tackle football. I am in agreement with him playing. I wrote his mom an email if she was in agreement, that was a week ago and no response. I asked a the other day if he spoke with his mom about playing? He said he did. Her response to him was, he is in too many activities (he is signed up for flag football, which starts in august) and that it would take time away from s. She doesn’t have any activities until October. Also, my s when we were married no joke was in, drumming lessons, hip hop, baseball, karate, and gymnastics. But now more than one activity is too much???? I know why, because he would be with me more. I coach flag and want to coach tackle. If she says no, then what? I asked my lawyer and he said I could still put him in, I would just be responsible for the fee. My problem with that, on her days she may not take him. She did that when he wanted to play baseball, she wouldn’t take him, and then he stopped playing. Again I was coaching. It is so sad that she is so selfish. Do I sign him up and take a chance or unfortunately do I let him miss out if she says no? Thanks everyone.