>>723124024
This is where I'm at right now, what I understand.
Places you can enter: Hotel Z, Racine Construction, Research Lab, Restaurants that all share the same model (are these gyms).
Shops are just menus when you interact with the door, even the hair stylist.
Right now where I'm at after doing the tutorial side quests and Emma shows off Mega Evolution, day/night cycles start happening.
Doing the sidequests available now which each gives you the Kalos starters.