There seem to be more efforts made these days to encourage the recycling waste materials. I've seen disposal bins that only takes paper, glass and plastic. Yet for some reasons, I find battery collection points to be relatively uncommon even though it's not exactly the most environmental friendly item to dump. I am actually Googling where I can dispose of some AAA batteries, and I found one website that allows me to search for collection points (BatteryBack). Well, if I was in Aberdeen, I might as well forget it, they couldn't point me to a collection point there. But even in Central London, I would still need to travel some distance. I am sure there are other places not shown on the site, but it's a lot of work, and not very encouraging.
I am not sure if they still do it, but when I was in Switzerland years ago, I could just bring them to a supermarket (or at least the Co-op) which is efficient since most people will go to a supermarket at some point and it's not hard to bring some used batteries at the same time. Now I do tend to use rechargeable batteries these days, but even those need to be replaced eventually, and alkaline batteries are still handy as emergency backup. And I think many still use alkaline batteries out of the low unit cost and convenience.