Yeah I'm not getting these warnings.
You may not as long as you know the limit of how to play the game.
Until the pokemon comes out of hiding you can't tell where they are so trespassing to find them makes no sense.
Why would it make no sense? According to http://www.imore.com/pokemon-g... , you are notified by your phone that it is out. Some kids (or not bright people) may keep their eyes glued to the phone instead. As a result, trespassing could easily occur (get excited about the game and pay no attention on where they are going).
Then once they're out of hiding you tap to bring up the capture screen. There's no need to get closer to capture em.
You are correct. Again, some kids get excited, look at the phone, and play it right away instead of "moving away to a safe zone" to initiate the capturing.
I hope you would try to understand how others think too...