Obviously the concern of the grandparent is that if you do like the article says and you blindly follow some randomized scripts to where they tell you to go, you can easily end up "into the bad part of town".

Well, you obviously don't jump into a volcano just because the app tells you to. Unless you're going full Dice Man with it.

No, but you obviously also don't necessarily know if some streets it asks you to go to are in bad areas, unless you know about the city/country it has you visit in a lot of detail.