I have an 8 Plus and it's a great device. But it is a bit much to tote around and it is hard to use one-handed comfortably. I really like it. Recently though, I bought an iPhone SE and I'm loving it. Yes, the screen is much smaller but I can see it just fine, and I can use the phone with one-hand without any discomfort for long periods of time.
Right now my 8 Plus is still with me but has been relegated to home duty as a mini-tablet. The SE, however, goes with me wherever I am. When I'm out and about, I don't miss the big screen of the 8 Plus at all. The little SE does all the stuff I need a phone to do, without the bulk or extra weight.
Tonight I actually ordered a backup SE in case this one stops working for some reason. I want a small phone to last me for the next 3 - 4 years, and I didn't want to take a chance that I couldn't get another SE quickly since it has been discontinued.
I respect the folks that prefer larger screens and don't mind carrying them around. I did that for a while, but I'm just sick of it. It has been years since I last used a 4-inch phone and I really missed it. I know that I'm swimming against the tide of giant phones, but that's okay. I'll use me SE phone for as long as I possibly can and hope that Apple someday puts out another small phone for people like me.