Subway is backing off breakfast, and it reveals a growing problem plaguing the restaurant industry

According to a recent survey by the market-research firm Field Agent, 43 percent of Subway customers said they don’t eat at the chain for breakfast and 19 percent weren’t even aware it offered the meal. And 67 percent said it wouldn’t affect their Subway eating habits at all if the company stopped offering it, according to the study, which surveyed diners on June 12 and 13.