OMG.
The home button fingerprint scanner doesn't work when the fingerprint is covered. Scandal! Who would have thought! I'm sure all the other makers of devices with fingerprint scanners have solved this, otherwise let's go and complain to those companies too.
I don't think anyone here is saying that the scanner should work with gloves on. That's silly. On my iPhone 6, I was still able to press the home button and bring up the pass code screen.
Since my iPhone 7 plus doesn't have a 'real' button, that doesn't work. I used my nose yesterday. It did the trick, but it seems silly to have to do that. I live in the frozen tundra, I occasionally need to make a phone call outdoors and I'd really rather not have to take my gloves off if I can help it...