I once spent three hours explaining to a Boomer company owner that his eight year old file server with a single drive was absolutely critical to his business, that without it, he didn’t *have* a business, and that he needed proper backup systems and plans in place. He refused to listen, said it wouldn’t ever be a problem and that they could just do business the old fashioned way if anything ever happened to it. He specifically refused to pay for any sort of backup system and ranted about how ‘you kids like to play it too safe, planning for failure is how you get failure, you’re just trying to pad your bill, blah blah blah.’
Three months later, I get a phone call one late afternoon. The server’s lone drive died and it turns out that no, you couldn’t run his business like it was 1975 any more. Funny that.
Fortunately, I had stuck an external hard drive on the server right after he had gone full idiot on me. So I actually could restore his data after I bought some new hard drives to replace the one that crashed. I made sure he paid out the arse for saving his business despite his idioting at me about backups.
I wish I could say that guy was unusual. Sadly, he’s not.
You deserved every penny.