I haven't had the opportunity to ride one myself, but my understanding is that they're steadily getting better on that front. Mid-drive improves balance, for example: https://www.electricbike.com/mid-drive-kits/
And if the infrastructure is good enough, a lot of people will deal with some clumsiness. Lots of people in Denmark and the Netherlands use bike trailers or cargo bikes, and having had a chance to use them, believe me, those are DEFINITELY clumsy.
And if the infrastructure is good enough, a lot of people will deal with some clumsiness. Lots of people in Denmark and the Netherlands use bike trailers or cargo bikes, and having had a chance to use them, believe me, those are DEFINITELY clumsy.