Them: Why not use Google Sheets or MS Excel as a Database?

Me: You are right. Go ahead and use it. Have a nice day.

^ You reach that stage in life where you just don't have any will or power left to fight stupidity. You know what? Forget the fight. It's about keeping my peace. There, I said it.

@nixCraft Question 1: Can this become my problem? If not, then why bother?...

Question 2: Are they just naive? Good to ask, if you deal with students for example.