Same here. No way I'll go smaller than the plus but I do think Apple needs to make a 4 inch for the people with baby handsI hope that the 6 and 6+ sizes will stick around for quite some time to come. Please don't go any bigger than this.
As for smaller, no. Hell no.
Just don't sit on it. Maybe you can carry it on a belt buckle holster? XDEven better. The iPhone 11