Students at the College are allowed to register for SFS classes- space permitting, which is an important caveat. Afaik it’s not particularly common in practice. SFS students do take some classes at the College. The SFS requirements have recently been (very slightly) reduced, to increase the flexibility.
Tbh, though, SFS and the College are really different worlds. The students that I know who want SFS (including one of the Collegekids) have a really strong drive to international - ours started aiming for it at 14- and it is the program if you know that’s what you want. I don’t think it’s as happy a choice for somebody who is maybe kinda sorta perhaps interested in international.
Ofc, who the “we” in “we are concerned how it might foreclose exploration in other areas” is - and whose voice is strongest in that “we” matters a lot.