Fair enough, because we Brits do too. They don't really exist outside the show any more, since cops had radios from the late 60s and a whole mess of better tech now. There are only a handful of real blue Police Boxes still in existence on location, mostly for historical or tourism reasons - even at the time the show started they were becoming an anachronism.
Tip: if you go to London, particularly if you're going to London Film & Comic Con, there's one - and the only working one fulfilling its original functions - right outside Earl's Court tube station. (Needless to say, many nerds taking turns to get the shot). The red ones you see in Praetoria are the Scottish version, and there's dozens of those in Glasgow - but about half are in disrepair, and the other half are hipster coffee bars. Not sure which is worse.
Also, many Brits refer to your typical work site/festival PortaPotty as a TURDIS. Just to keep the thread classy, y'know.