My internet connection has 15Mb/s down Thank you very much. So while I'm not your parent I can totally see how that 20 is totally fine. So if you are in a corner of the house you can't get Wifi to that's on par why not use that cable if it exists?
Would I want to use it to transfer large files around internally nowadays? No.
Works for everything else assuming you are the only user of that cable in that corner basement room? Absolutely.
Also insert appropriate "kids these days" joke. I guess it's like HD. Once you have it, you are not going back. Do I need a triple A game I just bought and want to play to download in 2 minutes vs 2 hours? No. But kids these days expect it I guess. No patience.
Would I want to use it to transfer large files around internally nowadays? No.
Works for everything else assuming you are the only user of that cable in that corner basement room? Absolutely.
Also insert appropriate "kids these days" joke. I guess it's like HD. Once you have it, you are not going back. Do I need a triple A game I just bought and want to play to download in 2 minutes vs 2 hours? No. But kids these days expect it I guess. No patience.