If you consider yourself a sophisticated urbanite or a well-to-do suburbanite, you’d probably never in a million years think that a chain restaurant would be an appropriate place for a marriage proposal. But why is that? Is it because The Cheesecake Factory is not sufficiently expensive or fancy for such an occasion? Is it because there are too many menu items, and all of the proposal-worthy restaurants only have eight entrees on the menu at the most?