I don't think that age is an issue here at all. People at the ages of 20, 30, 40, etc. are all capable of taking care of their babies either very well...or very badly. It all depends on the person.
I joined YT when I was 17 or 18, now I'm 21 and I've had Wobie for 3 years. I've never felt judged because of my age.
I'm very glad you joined. You sound like a wonderful mommy to Beyonce, and I look forward to getting to know both of you!