Although people can and do ride SS in all kinds of environments it may not be the best tool for the job... it is really dependent on how fit you are and after commuting about 10,000 km on a fixed gear I was even fitter.

Prefer fixed over ss for that little bit of extra efficiency and I rarely ever coast on any bike.

My fleet is ixed and has everything from 1 speed ss and fg bikes to 3 speeds to 9 speed... cannot see why I would ever need one of those newfangled 10 speeds.

My primary commuters are now a 3 speed with a dual drive (6 speed) and a 24 speed XC mountain bike... my health does not allow me to rock the Ss/ fg bikes as much as I used to and I need some variable gears.