To counter your anecdotes from your life experience with mine
, many of my classmates in undergrad were commuting from home and do not fit the picture you paint. I would chalk this up to, well...they're New Yorkers.
I don't disagree with the overall point that striking out on one's own can facilitate growth and maturity...but again, I can also point to counterexamples from my own experience.
Yeah, I think it can go either way, and depends on the person... one of my best friends at school lives in the dorm but her parents are 10 minutes away. They solve all her problems for her, do her shopping, do her laundry, drive her everywhere, etc. Even in the dorms, I don't see her as a very independent person. Whereas I know people who live with their parents and they make more independent decisions and are more confident with handling everyday emergencies than my friend. My friend is very confident about who she is, but if she runs out of food or something, she's lost.
I personally like living in the dorms. My freshman year I lived in suites so I only had to share a bathroom with 3 other people, share a room with 1 other. That was nice and was a contributing factor to my college decision... as silly as that sounds. I think I would've hated sharing a bathroom with everyone on my floor.
In terms of independence, he best for me though was living abroad. Even though I'm 800 miles away from my parents at my regular school, they're still a $150 plane ride away in a true emergency, they can call/fax without an extra charge, etc. In the dorms, I had a cafeteria; when I lived abroad, I had to cook for myself. I had to do all my own banking (my mom does my banking at home, because it's easier to get the statements sent to my permanent address), stuff like that. The dorms are nice and I'm kind-of an introvert so it was an easy way to meet new people without feeling a lot of pressure. But I don't think I was truly living in an independent situation until I went abroad and had all the connections to home cut. I think that was a very valuable experience. I got home from a vacation one weekend and I had booked my hotel/plane on my own, figured out the public transit system on my own, and I was just like "wow, I'm an adult". LOL.
I'm currently in an apartment-dorm. I'm on campus but farther off, so I'm disconnected a bit and have more space but still close enough to be involved easily. I really enjoyed the dorms, mostly because of the independence I got (even though I had more studying abroad) and I'd recommend them... but you can certainly succeed as a commuter.