BA has kiosk check in options in dozens of airports, but primarily in Europe. It’s usually not worth it paying for kiosk technology if you have 1-2 flights a day from an airport which is the case at many long haul outstations, or if you know most people will use the physical check in anyway (eg to drop luggage). By contrast it makes sense at European airports with many rotations, lots of hbo travellers and lots of business travellers who may try to change to a different flight if their ticket allows.