The folding scooters(which do come in e-form) strike a good balance between transportation and transportable: You can take them on transit, and carry them inside. Folding and unfolding - on well designed examples, with a bit of practice - can be accomplished in seconds. Walking a bike really doesn't compare. I see non-folding e-scooters as a category restricted to "stunt users" (who need the extra structural integrity) and "rental companies" - who, as we know, are going to encourage leaving them on the sidewalk.

Electric skateboards and roller skates can boast being even lighter, but most folks will gravitate away from them as a commute device since maintaining control is much more difficult.

I'm not opposed to scooters, they're quite fun. However, from a practicality point of view of everyday transport, shopping etc., a bike is simply superior.