D3 Men’s Soccer parent here with some thoughts. There is not a bright line in terms of quality and competitiveness between the Divisions. There are about 140 D1 Men’s programs and about 400 D3 Men’s programs. The bottom D1 programs are not necessarily a different level of soccer than the top 50 or even 100 D3 programs.
The advice we got from a top 10 D1 program where my kid did camps bc we are in that state, was generally that D1 is close to 40 hours per week commitment in season, including film, travel, meetings etc. In contrast, my D3 son’s experience was in season was more like 25-30 hours per week, though that can vary depending on distance for travel for in-conference matches. UAA, a D3 conference which includes Emory, NYU, Brandeis and Univ Chicago, involves longer travel but fewer game weekends.
Other considerations include what are the spring season and off season commitments. D1s have a “real” spring season, with a specific number of weeks of training and a fuller schedule of friendly matches. D3s may have a shorter spring season or, depending on the conference, such as NESCAC, no official spring season at all… Even if there is not any, or much, of a spring season, there is pretty much always off-season lifting and training. My D3 kid had mandatory weight, speed and agility training whenever they weren’t in season, officially maybe 5 hours but dedicated athletes are going to spend more time in the weight room and the gym. Plus there are “captains’ practices” which are technically optional but pretty much mandatory for any one who wants to see playing time. And “suggested” futsal training during lunch or other free time in the off season etc. So he estimated that off-season was 10-15 hours per week and spring season was 15-20 hours per week.
Tolerance for schedule variations – from afternoon labs to spring semester study abroad – will differ by school. My kid’s D3 school did not have any classes in the late afternoon, but students still had to hustle to get from a class which gets out at 4, to get on the field for practice at 4:30. When his team travelled overnight midweek, he had to make arrangements with his professor to make up the work – not much different than D1, from what we know from friends.
In identifying a list of target schools for recruiting – look at finances and academic goals. There is no giant pot of money for D1 soccer players – the maximum scholarships allowed is the equivalent of 9.9 (I think that’s the right number) scholarships, spread over a roster of usually 30 players. Few programs offer full scholarships to an incoming 1st year, unless that kid is the national Gatorade Player of the Year etc. So soccer is not a magic bullet to pay for college. Then, think about academic programs – pre med? engineering? Check rosters to see current players’ majors – are they in the academic programs you are interested in?
Lastly, the advice we heard over and over was, imagine you have a career ending injury on the 1st day of pre-season, are you still happy to be at THAT school, even if your playing days are over? If not, give some serious thought to why you are pursuing that option.