

These are the dongles that came with the keyboards, so they’re paired out-of-the-box (although I have also used the process for re-pairing them). They are just connected to a USB port on the computer, so not really permanent, but I do leave them connected. Not both at the same time, but each in turn. Hope that answers your question, but I’m not 100% sure I understood it.
I moved from the city I grew up in and gave away my car on the way out. That was in 2017, and I haven’t owned a car since. I drive extremely rarely — used to rent a car for a few hours every couple of months to run this or that errand in the Pacific Northwest US. I’ve since moved to a larger city with better transit on the US east coast. I live in the center city and can’t imagine any reason I would need to drive at this point. It’s been a few years since I’ve driven a car.
How practical it is will depend heavily on your lifestyle and where you live. If you’re in most parts of the US, the default assumption is that you will drive a car, and you will be excluded from many things if you don’t. If you already live in a place that is conducive, are willing to move to a place that is, or can otherwise structure your life in such a way that doesn’t require it, you can absolutely do it. There are certainly trade-offs, but you couldn’t pay me enough money to go back to a car-centric life.