It’s a tough call. Going back to when I got my first iPhone back in 2009 I never used a screen protector and never had an issue. Never had anything worse than those micro scratches you have to tilt you phone against the light just right to see. Then on my iPhone 11 I got a decent scratch right in the middle of my screen and wound up living with it for 2 years and it annoyed the hell out of me. Enough so that when I replaced my phone last year with an iPhone 14 I put a screen protector on it. So 1 real scratch in 14 years of having an iPhone, but when I had one I hated it. I guess my answer is you probably don’t need one, but can you live with if it you do get a scratch? If you can’t you should get one.