Do you have an examples of what these long-term practical solutions might be or is it just wishful thinking? Some people can certainly be taught the financial planning skills that they might lack which are putting them in this position, but if there were effective methods of addressing poor impulse control, addiction, and many other underlying causes that put people in this position someone would have found them by now.
You could always start a business to lend money to these people on less predatory terms. I'm certain that these people would be glad to take advantage of the much more generous terms. Not only would you put these legal Lon sharks out of business, but you'd be helping these people at the same time. In a free market you don't require anyone else's permission to engage in commerce. If you lack the initial capital yourself you could always find other like-minded individuals (judging by some other posts there are few in this very thread) and form a corporation with your combined assets.
Coyness aside, we both know that neither you or any of the others here will do that for what I think are reasons obvious to everyone even some are remiss to admit to them. The experiment is doomed to remain squarely in the realm of thought. But as they say, it's the thought that counts, even though it does nothing.