I know a lot of men, and some women, who do this. If he races, he can probably do 70 miles in 3-4 hours, so it's not like it takes all day. As for hanging out at the bike shop, perhaps his wife and kids were out shopping. The truth is even when somebody is home with their family, the kids are liable to be in front of a computer or on their cells. Family time often doesn't exist.
And sometimes you just need to get away from your family.
My sister spent the whole break attached to her laptop. Granted, she had three papers to write, but she does this when she doesn't have homework.