I gave up trying to convince anyone to prep some thirty-five years ago. I would try a bit more with family, and actual loved ones, but without at least a spark of interest from the get go, I pretty much wrote them off. And still do things the same way now. All my family that is truly family know what to do. Other people that I care about I am prepared to help them, since they are trying to help themselves best they can.
Everyone else I do not give the slightest bit of consideration to trying to help, unless they get the realization, finally, that they need to do something, and give me an indication of that in some way. Then they have my help in any way I can give it without taking myself down.
My life is too important to me, and at least a few others, for me to throw it away trying to save someone not willing to try and save themselves. God helps those that help themselves. I am a long way from being a god, and that policy works just fine with me, too.
Just my opinion.