Our boys are 19 months apart and because of the younger one's birthday just before the cut off, they should be 2 years apart in school, but from what we can see, there's a good chance they will both be going to college either at the same time or just a year apart. They are still too little to know what will happen in 12 or 13 years (being 5.5 & 3.10) but I just don't see how especially the younger one could go without skipping. So, if that's the case and we have them both in the same school, we might as well rent them an apartment / house or purchase a small property for them to stay in and save a TON of $ we'd otherwise need for room & board x 2.
I can think of a couple of reasons having my eldest DS a Soph. in college this year, from his perspective:
"Why would I want to live off campus? I don't even have to go outside to eat (dorm is connected to cafeteria via 2nd floor passage) I live no more than 2 blocks from any of my classes, the gym, the book store, or downtown, and my dorm has 9 floors of women....I'd want to give that up why? So I have to cook for myself, shop for food for myself, find parking places or walk to the school? No thanks, I'm juuuuust fine at the dorm."
I should note, after his Freshman year, we coughed up an additional about 1k a year so he could have his own room without sharing, completely worth every penny as few of those in his class and particularly his roommate were taking class schedules anywhere close to his in difficulty and weren't respecting his need to focus and sleep.