The proverbial "average mom" outnumbers the people who even know what a filesystem is by orders of magnitude.
This is slowly changing and in 2-3 generations everybody will know what a folder-based filesystem was because it'll be prominently listed on the wikipedia page about broken computing metaphors of the past.
This is slowly changing and in 2-3 generations everybody will know what a folder-based filesystem was because it'll be prominently listed on the wikipedia page about broken computing metaphors of the past.