There could be more, but here are two common reasons the boy can’t swim.
- Nobody ever taught him how.
- He never figured it out himself.
And having established this into the record, I’d now like to compile an exhaustive list of all the other things a boy may not know how to do for these same reasons. It will be long, and will certainly contain some things that you can’t do, either, for the same reasons.
We can’t learn everything, of course, for life is too short. But for many of us—most of us, actually—we could certainly have learned more by now had learning been a bigger priority in our culture.
Oh, I was just kidding about making a list. It was a rhetorical device.