Which begs the question of how a Jedi master teaches a Padawan to do it. Just send them into a sleazy bar and make a drug dealer rethink their life?
As with all Force powers it is about being in tune with yourself, and with the Force, reaching a level of enlightenment, that takes time and effort.
Also, it’s weird it’s actually called a mind trick, given that cynics like Han dismissed the Force as simple tricks and nonsense.
I don’t believe the Jedi call it a Jedi mind trick. If I remember it correctly, the term was only used in a derogatory manner by others in the OT and PT.