Again, these are issues you need to ask the parents. I am not a parent.
But if you are asking me as a childless adult, let's pretend that I am tasked with babysitting some children and am taking them to the movies. If the children are aged 6 and 8, I would not take them to a movie with an openly gay character in it. That is subject matter that should be handled by the parents when the parents want to discuss sexuality with their kids.
But if I am babysitting children who are aged 14 and 16, I would be far more comfortable taking them to a movie with an openly gay character in it. At that age, it's almost always healthy for them to see that type of thing in movies and media.
There is a giant difference between an 8 year old boy and a 14 year old boy. There is a chasm of difference between a 6 year old boy and a 16 year old boy. I don't blame parents one bit for knowing that instinctively and being cautious and purposeful of when they introduce certain concepts into their child's development.