The size is a problem for suvs and other oversized vehicle. This vehicle is the right Size for the job.
The same us true no matter whether you're cycling, walking or skateboarding.
I dont know what rules you're referring to, but cycles can have any number of wheels as far as i know https://en.wikipedia.org/wiki/Quadracycle?wprov=rarw1
Fine, it's not a bicycle, it's a quadracicle if it makes you happy https://en.wikipedia.org/wiki/Quadracycle
Easier, cheaper and safer for last mile delivery in urban areas.
Much better visibility, easier to park, more cargo space...
I dont think it reaches the dangerous speeds.
And it's not lossless.
It depends where you live. I'm in Europe, and in my case driving to a park (im suburbs, not downtown) with my son was 10min, and cycling was twice as long but with a bike we could go directly to the playground, which was 15 min walk from the park entrance (including taking out the stroller etc) . So, while google maps showed me 10 vs 20 min, i learned it's faster to actually just cycle there.
- time spent looking for parking, and time spent walking from the car to the actual destination
I'm pretty sure Ukraine will be reasonable once they leave. Some sanctions though may not be so easy to lift, may be tied to reparations or giving up war criminals.