Nobody thinks they're smart in pointing it out, and it's weird that that's the impression you're getting. If anything, we're pointing it out because your comment reads like you have no idea that USB-C charging ports already exist. If you're looking for someone to blame, look inwards. It's your own imprecise language and poor writing skills that got you here.

But your new concern isn't any better. It's still as inane as what you poorly expressed it the first time. People having been using chargers for decades, and your argument is that all this knowledge will magically be erased because they mandated USB-C on devices causing people to try to charge their laptops, which come with dedicated chargers, with cheap $3 ones off Ali Express? How? Why? What different effect would a regulation like this coming from tech experts instead of politicians have when the problem appears to be suddenly-induced mass forgetfulness of how electricity works? This doesn't make any sense.

If people already see a USB-C charging port on their laptop, know it came with a dedicated charger, and have access to a cheap USB-C phone charger, then why would they only think to try them together after this regulation passes and not right this very second? What does it even matter if they try? It doesn't harm anything, it just doesn't charge or power the device.