They are not against it because they want to provide an android version for tentacle locker 2 [no promises]. There's also a lot of free porn games available for mobile, see my profile [Also many browser games work on mobile], I don't think most devs would be against it just to protect the kids
The reason they haven't made a mobile version is because they don't have an android phone to test with. They said this in a comment made 5 months ago in another game.
Note: I deleted the whole original comment because it was too long and unnecessary now that I know why instead of theorizing