I was surprised how much relearning I had to do with the coaster brake. Loads of little things – you can’t kick the pedals round so they’re in the right spot to move off at a junction – you have to decide in advance which foot you’re going to put down (not always going to be the same one – if the road’s cambered – right turn from a one way street etc), set the pedals so the other foot is forward, then back pedal to brake.
It turns out I quite often back pedal half a revolution to reset the pedals if I’m turning through traffic, swerving for something in the road, preparing for a rough surface, popping off a kerb. Having unconscious balancing tactics being stopped halfway and the bike stopping under you doesn’t make for a pleasant bike ride.
Even given that I’d be doing a lot less of that sort of riding with a child on the back, I’d still want a lot of practice before I trusted myself with precious cargo that’s also going to bring some added balancing challenges.
Or, alternatively, I wouldn’t get a bike with a coaster brake.
It could be that I’m a stuck in the mud who’s got weird riding habits that are unusually hard wired, and there are plenty of people reading this wondering how on earth I could have had so much trouble…