Paul J. Ryan, 68, of Henrietta, has found that his experience in ministry helped prepare him for his work now as a model and actor. Mario Arena of Rochester has appeared in commercials for about two years and loves the reaction of his children and grandchildren when they see him pop up in an ad. These five are among a number of mature models being hired by advertisers to sell their products and services. There is certainly a demand for more senior models, according to Affleck. People are living longer and are healthier for a longer time, he said, so companies with ideas and products for an aging population need to portray models that their consumers can relate to.