I have a feeling that many Brazilians would say no. I have a feeling that many personnel responsible for the security of the athletes and other visitors would also say no. I think some US swimmers would be hesitant. I have a feeling that the person responsible for popping (or not) the chlorine tablets in the diving pool would definitely say no!
Pokémon Go is merely glorified Orienteering, Rogaining or Rallying – which have all been around for years. However, I am sure that if we, as parents, mentioned to our virtual reality gaming offspring, that we join the local Orienteering club, we would be met with a blank stare in return. That would merely take them away from catching Pokémon.