if you're a college graduate and go enlisted all the other enlisted are going to ask you why you didn't go officer.
i knew a guy who did that. everyone just shook their head, but it's his life and his career. he said he did it for the respect. the staff sergeant questioning him asked, "so you think you wouldn't be respected as an officer?"
good question. enlisted men do more of the physical labor while officers do more of the mental labor or managerial work. while officers are trained to lead Marines to battle, most of them are not in the field like the infantry, even when an officer is an infantry officer.
i worked in the air wing and had a buddy i went to high school with go into infantry. however, we would all say, "i wouldn't mind being an officer. work half as much, get paid twice as much."
the training is longer and you are held to higher standards as an officer, and while it only takes 13 weeks of hell to become an enlisted Marine, I would say that once you're enlisted, it's harder being enlisted than being an officer, but i've never been an officer, so this is my perspective from the enlisted side, and while it is more difficult to become a commissioned officer, once you're in, it's tough, but not as physically laborious as being enlisted, however, you are still held to a higher standard physically
if you're a college graduate and you think you have what it takes to be an officer in the Marine Corps, go for it, but if you think it would help you to build confidence to go enlisted first, then do it. it's your life. your career.