- Last year, I led the off-road cycling for a District expedition to Scotland (day rides mostly on old rail trails, so not massively technical). We had had reports of accidents in previous expeditions because the hire bikes had disc brakes and kids were going over the bars. I responded by doing a significant training session every day before departure, but I taught the use of both brakes together, discussing the merits of each.
- This year, for various reasons, we used an instructor for a very introductory session, on a field with games and balance session, followed by a short, very mild, purpose-built track with some basic technical elements. He insisted that the Scouts should use only the back brake (possibly because he did not have the time I had had the previous year to ask participants to demonstrate controlled braking before we set out).
I don't think it would ever have occurred to me to teach the use of a back brake only for such a session?