I certainly can't tell them to buy hardware wallets when they don't even know the basic stuff.
That's a problem they will have to figure out, or if not, face the consequences. Too many people approach Bitcoin and crypto in general too lightly. You can't save those people from themselves. It's even worse if they have money to invest. The more they have, the higher the odds that they will be scammed. If the money is tight, at least there is not much scammers can steal from them.
We live in a world of one-click-fix-it-all solutions. If it takes more effort than that, they lose interest.