We should all help here
Tell, show, remind, nag our friends to backup their systems. We are IT literate, we understand the issues, so help those who do not and those who just cannot be bothered. Also: point out that cloudy storage cannot be relied on: if you can't touch it you don't control it. Oh, you might also accidentally delete stuff - stupid, but we all are sometimes.
I give friends memory sticks, but have to remind them to use them.
It is not just ransomware & machine failure or loss: my sister lost a bunch of photographs on her laptop when she was given a new iPhone and set it up.
