@jespah,
There are also short pants though, as in much more fitted than board shorts. Not sure which type boomer is referring to.
These aren't board shorts, for example:
(First result for "capris for men.")
I do think it's a trend that's on its way out, it was part of the whole Hedi Slimane slim silhouette thing that's going bye-bye. (That's for the trendy version, not the board short version.)