How many small school cluster consortiums are there in the US out of the thousands of colleges? How many are in the OP’s area of interest? Anyone can cherry-pick examples. Most of the small colleges are…small colleges. To make a cluster the schools have to be in close proximity. It can work in Boston around Amherst but elsewhere…maybe not so much. However, I can see this growing in the near future as enrollments drop.
OP is looking at Rollins. It’s a small school but surrounded by Orlando. Metro area population is 2 million. Still a small school but surrounded my a large population. Does it fall off the OP’s list?
BTW…FSU is very walkable. Penn State not as much.