Two drawers full of useless USB cables next to me imply so, and that's next to having 6 chargers and cables pretty much everywhere you can sit in my apartment.
But I wouldn't call it significant, I would call it completely unnecessary. I'd really rather buy one when I need it than get one with every single gadget I buy, which is precisely what the EU is trying to achieve.
Oh I'd totally rather just buy one as well, but let's be honest this is a first world problem around convenience, it's not going to put any significant dent in the global e-waste problem.
But I wouldn't call it significant, I would call it completely unnecessary. I'd really rather buy one when I need it than get one with every single gadget I buy, which is precisely what the EU is trying to achieve.