There are lots of opportunities for career second chances in the US – probably more so than most other regions, according to the preponderance of reports I've seen from people with experiences in multiple cultures/countries.
If you perceive otherwise, then it is very possible that you are encountering one or both of the following:
1. A highly-local expectation, in your particular community/family/friend-groups. You may need to move.
2. A hyper-local expectation, in your own mind. It might be justified by the particular path through experiences you've had, but now become self-reinforcing & self-defeating. To see counterexamples, against human tendencies for confirmation-bias and negativity, you may have to deeply consider that you might be wrong, and that your sampling of the possibility space has been unrepresentative.
Going to college after the appointed time, that is right after high school.
If someone does so and makes it work, that's wonderful, but at least around here I can't see a business owner tolerating someone with age but not experience, especially with legions of twentysomethings beating down the doors begging for a job before the rent savings run out.
From what I've read here on HN (and other places), even with experience, ageist bigotry is a significant impact on people's careers, I can only imagine it's worse sans experience.
So in my own experience, older colleagues can usually bring two things to the table regardless of relevant work experience: maturity and responsibility. This isn't always true (I've definitely had some older colleagues who are exceptions to this rule), but I think probably your average 40 something is more mature and more responsible than your average 20 something. More importantly, if someone went and did this degree in their 40s, I know they are doing it because they really want to follow the career path that the degree leads to, not because they chose this academic program at random at the age of 17 or 18 because they weren't sure what they wanted to do.
My gut says this is a scam.