Is it normal to wear hats inside?
Yes, plenty of people wear hats indoors, especially as part of an outfit or for comfort. Whether to take one off depends on the setting and local etiquette.
It’s pretty common to keep a hat on indoors these days, whether it’s a beanie, cap, or fashion hat. Some people simply like the look; others wear one for warmth or convenience.
Etiquette varies. At home, in casual spots, or at many public venues, it’s usually no big deal. At a formal event, someone else’s home, or a place of worship, taking it off may be the more polite move—and in some families or communities, that’s the expected custom.
So you’re not doing anything inherently weird by wearing a hat inside. Read the room, and if you’re unsure, taking it off is an easy, respectful default.