Lazs, I believe I'd be able to kick them in the throat merely because of the layout of the flat I live in.
Even I would wake up before they kicked in 2 doors and being a flight of stairs up I'd take full advantage. I'm pushing 40 and if I miss a cod liver oil tablet my knee is ****ed. Otherwise I'd be as vulnerable as anyone else.
To keep it short, arming the general population is a good idea if they're used to the responsibilities, concealled carry works. In the UK though, despite our history it would escallate the already dubious crime rates. Arming the Grandad over the road would only make me forget about him rather than keep an eye out.