While I'm every bit qualified to run my own email service, I don't. I pay protonmail to do that for me these days and save myself a lot of time, effort and stress.
Replace "email" in what you wrote with "web". Is it just too easy for something to go wrong? Sure, for certain kinds of people. Everyone should just stop hosting servers altogether, if we're worried about things possibly going wrong.
People here, generally, aren't technically illiterate. We don't need you to tell us that because you're not comfortable doing something, we shouldn't.
It's obvious when your website goes down. It's not obvious that emails aren't being delivered and you've missed something important that you'll never see.
Also, I don't agree that it's not obvious when something goes down. You don't know how I or my users check my email. If anything, I hear from people much more quickly when there's an issue with email than web!
To reply to something you said in your first comment, as someone with over a decade of experience it is my place to share my thoughts about this subject. If you want to ignore my thoughts go ahead, I could care less.. but I don't appreciate how you're acting like I'm doing something wrong.