I was in Spain last year and I'm here now (I've been nomadic the few years). Last year transport cops in helicopters were scouting low along highway to catch speeding motorists. We noticed there are speed radar warnings on the road with a picture of a helicopter and a drone. Apparently there will indeed be drones doing the job (cheaper than a heli, I guess). It's not necessarily the speeding but the other types of surveillance the cameras will used for. I paid for something the other day by card in Spain and the brand new card machine had a little camera on it. But I guess they will be made overseas and implemented in many countries eventually. I haven't seen many of the self scanner in shops in Spain (except Decathlon), like there are in the UK.

What kind of restrictions on cash are they using in Spain so far? Cash is still very much widely used here in Spain. I hear it's because of the tax which, as you say, is truly eye watering! I hear around 50% or more in some areas. Of course the true tax will be much more due all the the double, triple dipping and hidden taxes. I see people paying with cash all the time and do it myself as much as possible.

What seems to be happening is things are implemented in different ways at different times according to what the populace will tolerate. People in the UK don't seem to question much and accept or even embrace cash-free, self checkers, cameras etc