Phones, tablets, and laptops are not sold in bodegas, designed to be disposable, and thus made as incredibly cheaply as possible.

The high end vapes use huge amounts of current to the point that vape users will specifically seek unprotected cells because the protection circuitry adds a slight bit of internal resistance.

So then the unprotected cells can then short out in their bags or otherwise be damaged and fail when the vape electronics fail...

I think many don't appreciate just how horrifically cheap and dangerous some of this stuff is. Not just vapes, but things like charging bricks too.

I'm generally not a proponent of draconian regulation but I firmly believe that any electronics handling substantial voltage not approved by UL or similar should be rejected at the border. It's all dangerous and incentive to manufacture it needs to be curbed.