There has to be an easier way to zip up a jacket! I’m sure it’s not just me that gets infuriated by those fiddly two part zippers which have to be joined at the bottom before they work.
If you engage the two parts at the bottom even slightly wrongly, it refuses to budge or worse it gets stuck an inch or two up. You are then faced with the knotty problem of freeing it, and starting again. If it’s really jammed you have a major problem because you are now trapped inside your jacket with no easy way to escape.
And it can get worse because if you pull and wiggle and push and twist, you are liable to tug that little tongue thing off completely, and then it’s goodbye zipper, and almost certainly goodbye jacket! Give me buttons any day!