How many email accounts does Gmail have? How many have you seen locked for no reason? It has to be a staggeringly low percentage. I understand the fear, of course.
To me, paying a small yearly fee for email where I can actually talk to human support is like buying Fire Insurance. On the one hand maybe my house never burns down and I'm just throwing money away, on the other hand if something bad ever does happen, thank God I did it.
Also, that old saying applies: “If you aren’t paying for a service, you aren’t the customer, you’re the product.”