I've been bemused by quite a few flights with applauses on takeoffs & landings when travelling some years ago in er, "developing" countries. The applauding may have been due to the novelty of airline travel for the locals; technically difficult airstrips – e.g. STOL in Nepal; or lower quality aircraft e.g. ex Aeroflot in China - all cases where there were perceived or real increased risk factors.
Anyway, why not show some appreciation for the crew!
