I was chatting with my dad who said he was taught to double-de-clutch when he joined the police, and how it's not necessary anymore but he says he still does it without thinking about it
Checking the oil comes to mind, I quite like imagining what my granddad would say if I showed him how to check the oil level of my my current car, which doesn't have a dipstick
I assume in future clutch control or even being aware of gears/engine speed will be totally redundant