I know from grafting that the wood is very tough. Not the easiest to work…
So makes a great tree for the front yard. This spring, I put one into both my own yard, and also a co-worker’s. The co-worker is more concerned than I about aesthetics and is pleased with it. It helped that I got 6’ tall Contorted from England’s, so they are starting out pretty tall.
I’m not sure it would be as much of an issue on the east coast- there is plenty of water, so they don’t need to go all the way to a foundation to find it. Until this year, I’ve only gotten suckers from my oldest (7 years), and even then, the furthest any of the 5-6 went was about 6’. This year I got one from a 3 year old tree and it was maybe 1-2’ from the trunk. I actually wouldn’t mind more, as I transplant and graft them.
Just make sure that the maples aren’t blocking the sun for the new jujubes. If they don’t have enough sun, then they will just be ornamental and not fruit.
I was almost sure that I had read that Sherwood is a thin, upright (almost columnar) tree. But, the two Sherwood I have seem to match your description (weeping). Both have been putting on quite a bit of growth this year. Here’s a pic of one from a few days ago at a rental. I didn’t do any branch bending at all- the tree (planted in spring 2017 as a 1" caliper monster from Trees of Antiquity) took this form on its own.