First of all, every person needs to know how the church is arranged — it will depend on this where you can go, but where — no. Any temple is divided into 3 parts — bitch, the temple itself and the altar. The first place in which we get into the church is a bitch where divine literature, icons, candles and other church utensils are sold. Sometimes there may even be clothes for clothes. If you move on, then you will get to the temple itself, where worships are held and there are prayers. The altar, as a rule, is fenced off by an iconostasis — the entrance to it for women is prohibited in general, but men can go to the altar only in exceptional cases and by permission of the priest — for example, with baptism. Thus, it becomes clear that ordinary parishioners can be in the narthex and in the temple itself.