CoyoteOldMan hmmm, a dilemma indeed. My approach with my girlfriend has been to become ‘coffee man’ which has allowed me the freedom to buy whatever kit I want so long as I provide coffee in the morning.
The trick is to get them hooked on fantastic coffee (which requires weighing of doses, paying attention to the shot, knowing what’s going on, when to stop, tweak grind settings, etc, etc) then when you’re not around and they try and make their own they either learn to appreciate the importance of being precise, or realise they don’t really care, which is a win/win really.
It would be interesting to hear other people’s experiences but from what I’ve heard, many start off thinking that their partners, kids etc are going to get involved but they usually don’t so just please yourself really! 😅