A solution for some:
eShopping Trolley
Like Class 2 & 3 vehicles they can be used on roads, footpaths, pedestrian area, and stores.
Trolley is same size as a standard large shopping trolley. Larger wheels with battery & motors in the lower chassis below the basket.
Also has a driver platform that you stand on and steer / control from. Your "Door 2 Door" transport solution with shopping/load capabilities.
Optional "Rain Cover" for goods and driver.
Can be parked anywhere for free. Used on roads (won't break the Wales 20mph limit), no road tax, not MOT, no compulsory insurance requirement. Sadly you can't use them in Bus Lanes.
When we get a few together we can legally do the truckers slow overtake holding up traffic. Best done in front of GOV/Parlimentry/Official vehicles