I think liking the concept of a character like that is fine as long as like you aren’t inappropriate about the likeness of the actor or the actor themselves? If you’re the anon that also sent “ Do you ship an adult and child from movies or shows if they’re played by real people.. Example/Harry Potter” I’m assuming you mean more than just “like”. To answer your question about the shipping, yeah I’ll probably ship something if it’s written romantically enough or weird enough but like would divorce the image of the actors from the ideas of the characters.
I don’t know if i explained it clearly enough to cross out every scary “What if” you might have but I’ll say I definitely don’t approve of the harm/obsession over real children from adults.