Printer45: I took my children out on public roads to their primary school which was quite close - it was a nightmare. We now drive to our recreational destinations and enjoy a safer environment. Cycling should be mandatory for every driver, just for a day.
SHB: Are you mad? I live in south London. There are far too many things to knock you off your bike, including mad bad one-way systems.
Strawberrykate: I cycle everyday, on busy London roads. I often question my sanity in doing so but it's free and quick. An arse when it rains, though.
These comments are personal opinions