On my iPhone 6 I see maybe a crash rate of 2-5% (one in 20-50). There are apps with higher crash rates from time to time that usually get fixed with updates. I don't try to run the latest demanding 3d games and such on the phone, since I don't expect them to be usable on a 3-year-old device.
Maybe you're pushing your devices harder than I do or something but I second the parent's sentiment that your experience is out of the ordinary. But that doesn't mean it's your fault at all, just unusual.
All that being said, I'm overall less happy with iOS 11 than 10 on my phone. But love it on the iPad.
I mean, if that’s what you prefer to do, be my guest. I don’t mind at all. I’m just pointing out you might be able to do something about some of the problems.
Also, I didn’t say it was your fault. I get that you’re frustrated, but it doesn’t help to get angry, especially with people who are trying to help you.
As I mentioned I have multiple devices and I observe these problems everywhere. And I have heard the same from friends too. And all these people on this thread are complaining about it.
Now where is your source on how my problem is just some extreme case and my own fault?