We have a toddler and a large dog. We own two electric cargo bikes and get around perfectly well without owning a car. There's car/truck sharing and rental if I really need to transport something large and heavy (> 100kg).
> Just design a better one.
I'd very much prefer if all that parking space and all that space used by 4-lane roads would be used to make the city more dense and walkable. If I can walk to the kindergarden or school, there's no need to even take a bike, if close enough a kid can even walk on their own. The only things that makes such a thing infeasible are cars.