In the USHL for example, once a player nears the age of 21, they have to start taking classes. Also, if a player leaves a college and goes back to the USHL for example, they have to resume classes while playing JR's
I guess it’s hard as a teacher to wrap my head around a player graduating High School and not continuing their education while playing Jr Hockey for a year or 2 and then getting back into it. I support the hockey decision 100% and education 100%. Going to be an interesting decision.
Players in juniors can and frequently do take college courses for credit before enrolling in college. The issue is that they cannot take a full course load because that will burn a year of their 5 years of athletic eligibility to play 4 years in college. The reason the above posters were mentioning discussions with the players’ colleges is because each college determines what a full load is and whether the credits are transferable.
Here are some of the basics: http://collegehockeyinc.com/articles/2014/09/taking-college-classes-juniors.php