The program we used for "keyboarding" class required two spaces, too. (This was in 1998, but the program looked like something from the '80s.) The teacher had me evaluate a newer program (that looked more "Windows 95-ish") later in the year and it required a single space. I made a lot of typos that day.

I can't remember what my college course required because I only had to go five or six times to prove my proficiency. (Yes, my university's computing program required a typing course because they had students that couldn't touch type.)