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...