Honestly that sounds like a jerk move.
Quite the opposite,
Why would you force someone to use Linux?
In what world is that force ? He wasnt holding a gun to her head, the opposite, he’s freeing her from stupidity.
Decent people help others, they don’t go along with their stupid ideas before at least trying to convince them its a stupid idea. An allegory perhaps, your friend comes over, they have a 1/2 dozen beers, they’re going to drive home… In your world it seems it’s force to ask them not to and to stay over.
It isn’t your computer and if you are helping them you should do what they want
Helping them is the phrase you seem to be confused about. It’s his sister, not his boss at the office.
So, just another reason to legalise them instead, available fron taxed, regulated and reputable apothecaries, like just about every expert says and treat addiction as a health issue. No need to spy on my dik pics.