I understand but sometimes there are books targeted for the “self-learner” that provide 0 solutions and are the type of books that save off major theorems to be proven in the exercises.

That’s completely fine. Don’t advertise the books for self-learners or “programmers”.

I would like to see actual books targeted at these demographics that provide solutions and aren’t concerned about being adapted in a classroom.

There is a market for those that graduated university a long time ago and would like to learn math outside of a classroom.

These sort of people don’t want to see solutions because they have to turn their work in for a grade, but because they want to check their work and get feedback. Outside of having to consult with TAs or professors they don’t have access to.