By Sara Silverstein Maye Musk, who’s been breaking age barriers in modeling for years, just broke another one: At 74, she’s cover model for the Sports Illustrated swimsuit issue. Maye Musk has been breaking age barriers in the modeling industry for years. And she just broke another one: At 74. she’s the oldest woman to appear on the cover of the Sports Illustrated swimsuit issue. In an interview with TheStreet she spoke about her groundbreaking cover and how society more broadly needs to change its approach to older women. “Women are ignored and then they are insulted or they are criticized. A…