I tell mine what they need to do until they get the logic.
For example: Right finger, right thumb for MTB gears and right finger or right hand for road STI shifters.
Have noticed in our family that girls and gears are not compatible, a bit like they are with heating controls and working the TV
This sounds very familiar…
I have had more success with my Missus describing the action she needs i.e. “push with your Right Thumb” or “click with your left index finger now.” but she’s still not entirely sure what she’s doing and has to ask repeatedly for confirmation of the instruction, then confuses left and right and stops at the bottom of a hill, in the wrong gear…
Our eldest is Five, and I’m just sticking to a SS bike and flat routes for now, really not sure when the best time to introduce the concept of a multi-speed drivetrain to her would be, she’s not unlike her mother with these sort of things…
I reckon the absolute best thing you could get for technophobic women and children would be a Nuvinci hub/shifter but it’s quite a pricey way to address a user related issue…