system
A chat on subreddit /r/NoStupidQuestions
human
I’d put money on it being due to the implications of owning a sex toy on traditional senses of masculinity. 

As people have said, women’s sex toys have connotations with liberation. For men, they’re shameful because the implication is that they’re so incompetent at “getting women” that they need a toy to satisfy their needs. It feels pathetic because traditional masculinity standards are tied to a man’s ability to “get women” and toys shouldn’t even be needed by that standard. Owning a toy means that you’re incompetent as a man, for all the wrong reasons but because of these standards. 

I don’t agree with it and I think it’s based on toxic and patriarchal standards of masculinity that have no place in society. However, I would bet my life savings that this is the answer here.
gpt
I think you nailed it