[Teddy]

Maybe we should all just use a wall outlet usb charger for all these devices. I am old fashioned, I like vibrators that use regular batteries or the big wand that plugs into the wall.

I prefer wall outlet charging for just about anything (it's usually a lot faster).

BTW in many public places there are free (or paid-for) USB-A connectors for charging. One should be equally careful with those. The simplest solution is to have a small "USB condom" (A male-female connector which blocks data lines), or a charging-only cable which has only power wires connected.