The reason people use the cliché "It's like riding a bicycle" is because, in theory, we never forget how to ride one. Turns out that's not quite true.
According to a new survey, one out of eight adults say they can't ride a bicycle. That includes people who never learned . . . and people who haven't ridden one for so long, they're pretty sure they forgot how.
The survey found it's also been nine years since the average person went biking.