We love to cook at home. We are making it as a hobby that is why we hardly go to a restaurant and eat there. But we still do it when we are lazy to cook and it happens only twice in a month.
When on vacation / holiday / trip of course there's no way to do cooking so the whole week/month just eating in a restaurant.
Before I had to stay in a boarding house near campus, I almost never went to eat out because Mom would always cook for us. But in this boarding house we didn't get food so we had to buy it outside. So I suppose I can say I eat out everyday, lol.
I go out to lunch to Subway maybe 3 days a week because I work a 1/4 of a mile from them, but the other times I bring my lunch. For dinner, I just make things at home, eating out can become expensive.