It is that simple. Are you afraid of the influence she might have on other people?
What do you suggest? Apply censorship to all the media? Who's going to decide what is right and what is wrong? (and imo, there is no right or wrong, just perceptions of right or wrong.) By doing this you're setting a certain limitation of freedom, which I think is very scary, and reminds me of ww2 circumstances.
Don't you see - it is about freedom, YES she should be able to do whatever the fuck she wants and YES people should judge for themselves if they want to see her or not.