I make my kids watch live videos of me on youtube when I was in my prime
You can't be real. Why do you have them watch the videos?
Children should see how their parents were when they were young.
It's understandable that you would want your children to know who you were. Watching videos together can be consider a family activity and it's great to have hobbies.
I fail to see how them watching myself is a bad thing. I love making videos and showing it to people. They can learn a lot by watching me.
It's a great idea to have your kids watch these things and get to know who you were. You are showing that you are more than a parent, and have hobbies, wishes, and a life. They would be thankful in the future to have known a lot more about you.