You seem really focused on convincing everyone here that your family are not wise when it comes to money, and they're so irresponsible because they don't even care to learn.
Okay, sure, I believe you.
What you need to realize though is that EVERYONE is failing at something that someone else finds important. Personal finance is the important thing that you judge other people for. For others, fitness and health will be the thing they judge people for. For another, professional success and income will be the thing that they judge others for. For yet another, a lack of spirituality is the thing that they judge people for.
There are SO MANY things that people firmly believe that others *should be doing*. This is yours.
Well, guess what, no matter what the "should", you're kind of a dick for assuming that you know best for other people, and that's why they have no interest in listening to you.
I'm in the business of advising people. People pay me large sums to tell them what to do because I *am* a subject matter expert. And guess what? I STILL have to respect their ability to make decisions for themselves. I have the expert knowledge, but only they can decide for themselves how and if to utilize it.
I respect it because I've tossed out a ton of expert advice that I didn't feel was right for me, so I don't take it personally when someone has no utility for my advice, even when I'm "the expert".
Now, just because you love the people involved doesn't magically give you more entitlement over their behaviour. It makes it harder for you to respect their boundaries, but it's actually *more* important, not less. Love makes boundaries more critical, it's totally dependent on respect.
What I recommend in this situation is humility. Let go of this notion that it's your place to tell anyone what to do, that you know better than anyone what their priorities should be.
You don't. You simply don't. It's not helpful to try and push people to have your same priorities, it's condescending.
Different people have different priorities at different times. If you want to be a support for your loved ones, take an interest in what *is* important to them. Maybe, just maybe, if they feel respected and supported by you in terms of THEIR priorities, they may some day come to you for advice.
And maybe, just maybe, you will learn valuable lessons from them as well. Because chances are they've got their shit together in some area that you don't.