I’ve seen a pretty significant percentage of people touching their faces with the gloves, touching surfaces like phones, etc that they are likely not wiping down, and doing all sorts of stupid things with their PPE. On the whole I think it’s still probably more beneficial than not, but your average person using PPE with no training and no experience are pretty likely to screw up and do something that risks contamination at some point.
Heck, what I do for a living requires PPE including respirators, gloves, coveralls, etc, for a lot of what I do and even a large percentage of these guys screw it up because they just don’t take it seriously enough or get complacent for just a moment.
I’ve caught myself screwing it up at times too. Grab my keys with my glove covered hand, get in the car, take the gloves off carefully so as to not touch the outside with my bare hands, use hand sanitizer to clean my hands, then reach up and turn my key to start my car (yes my car is old). Suddenly I’ve touched my key with my bare hand after last touching the key with my potentially contaminated glove. Now anything I touch between that key and remembering to sanitize my hands is also potentially cross contaminated. Now I need to make sure I wipe down all of those surfaces as well.
That’s not even mentioning the number of people I see in public places taking a glove off and putting it back on, or pulling down their mask for a moment, or touching their glasses/mask with their gloved hands, etc.
In developing safety programs/plans to mitigate safety risks, there’s a reason that PPE is considered the last option and should be used in conjunction with other measures unless absolutely impossible.