They're designed to have a case now

I don't like it, but that's why. You're simply not supposed to use them without a case.

I will say though, I don't know where you're getting your cases from, but I swear by the Spigen ones, they're usually £10-20 and I have bought one the day I buy a new phone for probably the past 10 years or so.

I've not smashed a screen since I started, I used to have to talk to insurance once a year before. That £15 every couple of years has saved me hundreds of pounds in insurance excess fees.

I don't even use a screen protector