And a lot of people should postpone college education until they are in their 30s. This would be a much more popular approach if it weren't for the strings attached to many federal and state student loan programs that require full-time or at least half time student status, and also require being in a degree program and making satisfactory progress (as defined by the college) towards the degree. This rules out financial aid for the busy parent who wants to take one course at a time, changing schools from semester to semester according to where a desired course is offered on a workable schedule. It also empowers college administrations to require students to take worthless indoctrination courses in order to fulfill distribution requirements in things like "social justice" and "gender issues". Refuse to take this garbage, and then you're not making "satisfactory progress toward a degree" and you lose your financial aid.
I'm not sure I see your point. Unless you're going into the military straight out of high school or have some sort of long-term job lined up (say, on the family farm or as a trucker) I don't really see why you would hold off on college.