For someone brought up in Finland, the rules are instinctive but they are difficult to put into words. Depending on the size, composition, relationships, and the age structure of the group three basic patterns can emerge: Everyone can go to the sauna at the same time, men and women may take a sauna separately, or each family can go to sauna separately. Mixed saunas with non-family members are most common with younger adults, and are quite rare for older people or on more formal occasions. It is common for teenagers to stop going to sauna with their parents at some point.