[AtlUmpSteve]

You are starting off with a false premise. NFHS is, in fact, in the minority, not ASA; and is even considering joining the mainstream (according to a focus group study in which I am a participant). The NCAA rule as printed requires both feet; in fact, merely touching isn't sufficient, the pivot foot must start covering at least half of the pitching plate, and the stride foot must be in contact.

What alphabet soup rulesets do you know allow only one foot? Just because NFHS and some lesser (in softball) associations are willing to weaken the standard pitching rule out of fear that certain areas can't compete certainly isn't a reason.

By the same weakened argument, girls playing basketball in high school should be shooting at a lowered basket, and from a shorter foul line, because in some areas, they cannot play the game as intended college or in the WNBA.