> May be due to drier climate?
i think it's just because people come to Padel from other sports when they're a bit older. Middle Eastern countries are very good at squash, people have great technique and power/speed. UK players tend to play Padel like mini-tennis.
In Spain and Argentina you still have people growing up around the sport, playing it since childhood, often not having played Tennis before, so they have a different relationship to it.
Post 2020 Padel boom I expect in the next 5-10 years the rest of the world will start developing their own 'native' Padel players and the game will get more international and varied.