Physics attach
Physics between two separate objects:
There needs to be a feature under Physics where separate objects can SPECIFICALLY attach/detach/push/pull features. Ex: this would be great for strings being pulled or trigger on/off to detach whenever and go back to dangling as an example. Connecting two objects by certain points as marked in the rig panel (attach point pins) , where stretching or pulling strings/objects can be done in connection to other objects, all in relation to the weight of the objects themselves etc.
PLUS this should be a feature applicable between characters and objects to their limbs/hands/etc. Hope y'all read this!

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David Simons (Adobe) commented
Thanks for the diagram. We do read all requests here, but course have limited resources so we have to pick carefully!