I would agree with everything you said. Although it might be a nice experience,,,WS is completely over rated and a money grab. It’s certainly not worth hurting your kids rep by playing for another’s teams WS team. I would assume most if not all organizations would frown upon you playing for another simultaneously. And never a good idea to be jumping around.
By making it or even winning is not going to assist your child getting a college scholarship In 5 years. Kids evolve and grow at different rates with some hitting puberty early while others hit late. So,,enjoy it if it’s there but don’t break the bank or ruin you rep by being ruthless.