I use Google maps very often. And sometimes (as I have little daughter) I need very special information- where is more safety to stop, to eat, how is possible to drive shortly and something like that.
So when in a few times I didn’t find such information- I decide that most parents need the same information. And as I travel many in Russia (not very safety place in our world) and as I visit many places in our big world - I decide to make some marks to me, my friends and another people.