I get to catch some fresh air and do some exercise as well. So it is not a bad thing. Plus there is the fun and joy of capturing them Pokemons.
The plus factor is that when I go to the temple, I will pray as well. Then there is the ultra positive vibes and Qi emanating from such a holy place.
The thing to remember is not to play while driving and be alert of ones surroundings. Also do not let the game take over ones life. There is time for play and time for work.