Charr area bugged?
The first is the area right next to all the trainers, and next to the Hero waypoint I believe it’s called, there is a PoI in a building, and the doors don’t open, I think it is meant to be an instance, not sure. The second Is the place with (Home) after it, I forget the name, and inside is 4 PoI’s, I walk up to a set of gray/silver double doors with a guard outside, and they don’t open.
The first is actually inside Hero’s Canton, too. It has a total of 5 PoIs in there.
As for the gate, if you are at the right gate (somewhere in the middle between Hero waypoint and the Citadel’s exit, you should get a message on your screen, asking if you want to enter the instance.