Cycling was safe enough when I was a teenager. There were far fewer cars on the road and cyclists weren't routinely insulted and provoked by motorists as they are now. Cyclists were respected and treated as bona fide road users.
A number of things have put me off cycling again. There's the abuse and contempt just mentioned. Why should cyclists have to put up with that?
Then there's the lack of dedicated cycle paths. Mostly you have to cycle on main roads, competing with speeding motorists, massive lorries and parked traders' vans. The risk of an accident is pretty high. For cycling to be totally safe, there would have to be set-apart cycle paths completely separate from roads and vehicles. Unfortunately that would require a lot of spare space next to roads, which in most cases simply doesn't exist. So dicing with death on busy roads it is.
There's also the possibility of theft. The rate of bicycle theft has gone down, but it's still pretty huge - around 150,000 thefts a year in the UK.
If I even float the idea of cycling to Jenny, she says it's far too dangerous and virtually forbids it. I think she's right though, it's very hazardous. I watch wobbling cyclists trying to manoeuvre around heavy traffic and they do look horribly vulnerable. Unlike motorists, they don't have a metal shell around them to provide some protection.
So much as I would love a few energetic cycle rides, I'm not taking it any further.