CFK-- actually, that IS the reason for the 3y track in our minds-- to allow for going well beyond the requirements for the BS degree, and to make time for a second major. But we're fine with 4 or even 5y, too. DD definitely has the time.

Their graduates seem to go to top-notch grad programs and have for decades, so it doesn't seem to hinder their ability to go further to start with the college calculus sequence.

I'd definitely agree if my DD were seeming likely to head into theoretical mathematics, but I think she's far more likely to go into statistics/actuarial science or into applied mathematics in another field.

Yes, we definitely all plan differently. We never really had the option to do 'something else' with DD until she was more traditionally college-aged. She's champing at the bit to be in a college setting already.

Schrödinger's cat walks into a bar. And doesn't.