New 1x10 project advice?

I don't quite know what's going on here. Stupifyingly, no-one has just said, its a bad idea, even though it can be made to work. Just because a 1x10 can work, don't mean its the best solution. Personally, I think an internal hub, would be advantageous in this scenario. I have knee trouble, but wouldn't use the set-up that you feel is so ideal.

Having had a number of road bikes all with front mechs, it is always the front which I either use less or is problematic, so it makes sense to me just to do away with it, and still have 10 speed which is perfect for what i need day to day. I currently have an old beater which has 1x9 and have come to realise that it's the perfect set-up for my needs. I'm just interested to know why you think it is such a bad idea?