I agree with the age issues. When I played the game, I just assumed she would be 18+. While if she were 17 getting on a train shouldn't be an issue, getting a room would be. I also agree with the realism issues in the case of this story: It's basically a travel ad as VN, and then it should try to be correct wherever it doesn't get in the way of the story.
I do not really agree on the "dangerous, woman can't travel alone"-thing. As far as I know, Canada is a fairly save country, and people worry too much about this issues, thus restricting their freedom of movements more and more. While it's important to be careful (particularly, but not only as a woman), doing sightseeing alone shouldn't be and isn't really an issue, at last in the areas I've seen in the story so far. I also know enough examples of young women traveling alone exactly like this.