> The disadvantages of coaster brakes are that the pedals cannot be adjusted while standing over the bicycle frame.
Another disadvantage not mentioned in the post is that with coaster brakes the pedals can get trapped by the kickstand. I don't remember the details because this was a long time ago, but I accidentally found myself in a situation where I couldn't pedal forward because the kickstand was in the way, and couldn't pedal backward because the brakes engaged. I don't remember how I fixed it.
You can adjust the pedals while standing, it’s just awkward.
Take your weight off the seat, grab the back of the seat behind you and lift enough so the rear wheel loses traction and then you can push the pedals forward a bit.
Not ideal, but possible.
Probably had to unbolt the brake bar to get it to spin freely backwards?
You can get out of this situation by rolling the bike backwards. Since the clutch is engaged it will also move the pedals in the reverse direction.
Thanks for unlocking that memory for me, it's been decades since I had to know that.