Last, and if nobody addresses me directly I will move on from it, my goal is just awareness. I want everyone to e aware of the risks that they are taking. That's all. When we sign our boys up to play football it is fair to say that 99% of us understand the risks. But I don't think that's true with a lot of people when they sign their kids up for baseball.
If you(generic) understand the risks then how far you are willing to push things is at least an educated decision. Some people are going to be just fine letting their kids pitch and catch in the same day. Others look at the endless data and studies and decide Thats not a good idea for their son. And that's all great. I let my son play both ways in football this year. He started the last three games of the year at both MLB and RB. That was certainly a risk a lot of people wouldn't take.
There are endless studies showing the risks involved and for someone with a young kid just getting into baseball I highly suggest you google something about arm injuries in youth baseball, little league elbow, etc and educated yourself so that you can make an educated decision.
This is the MLB pitch smart guidelines. There are others out there that provide more clarity around what to do when not pitching like can a kid play in the field after throwing 60:pitches(the answer is it is certainly in the high end of the risk scale). But at least understand this before letting your kid loose
Thanks and hope everyone has a great season
https://www.mlb.com/pitch-smart/pitching-guidelines/ages-9-12