1) Do you regularly ride a bicycle?
I really, really try to. I have in the past. When I lived in Austin, I rode my bike nearly everywhere I went. In Houston, not as much as I should. During tolerable weather I have been known to ride fifty miles in a day (Houston is very flat). But Houston is very large and very hot and I have nearly knocked myself out from riding too far, too hot, riding too competitively with the autos on the streets. When I come to the UK next week it will be my only personal mode of transport -- something I am both excited about and totally terrified of.
2) If so, do you use it chiefly for commuting & errands, or recreation?
Both. Although I get the most satisfaction out of doing every single errand I have to do for a day on my bike. I like riding out for a beer, too.
3) Did you ride in the US, or take it up in the UK?
All my riding experience is in the US, but next week I shall give it a real trial by fire in England.
4) If you don't ride, why not? Does it seem too dangerous? Does it simply not appeal?
When I choose not to ride here it is primarily because it is 98 degrees or higher, or it is storming, or I know there will be a tremendous amount of traffic. In Houston you can count on at least two out of the three for at least five months out of the year. Also, there are not really any well-concieved bike routes out here -- it's sort of highway-based. Once you get out of downtown, you have no choice but to join up with the cars on the main roads.
Austin, Texas is entirely the opposite, and I felt good riding there in almost any condition except the super-heat. But in Austin, when it is hotter than 100 degrees, all buses are free for the day.
How I like depending on a bicycle in the UK remains to be seen, but it really looks like I will enjoy it for the most part--I'll let you know in a month or two!