Wife and I eat out almost every Sunday. But that's because we do a 2-hour walk (where we travel someplace within an hour) every Sunday, year round (reasonable weather permitting). Otherwise, cook at home. We don't consider eating out, or ordering (except on an occasion or two a year) unless we've 'earned it'. Otherwise, we're scratch cooks, 90% veggies, no red meat. Works for us.
Exception would be traveling. Even then,usually stay someplace with a kitchen.
When we eat out, it's often simple fare at a 'family restaurant'. If we're someplace with a good ethnic restaurant that is handy, then it's Indian, Thai, Mexican, Greek. Love Indian food --- cook that a lot at home.