This is a beautiful project @alexdory. I must say I am impressed by your ideas towards communities, groups of people and initiatives in general. There is one thing you said here that I particularly liked:

Old people are not grumpy and upset without reason

With keeping this in mind a lot could be done for the well-being of the elderly. And that is exactly why you have come up with such a beautiful idea, because you have this insight. Perhaps, most importantly, is that a project like yours would also keep them from feeling lonely.

Thank you for taking the time to share your ideas here my dear.
I wish you all the best always!