Most Gays use daddy as a term to refer to attractive guys. Gays are the most ageist, most people in their 20's wouldn't touch a 40 year old with a ten foot pole.
No. I have some twinks on my facebook who shared this picture with this old guy that has a caption "guys who want me" and this twink with "guys I want"
No, gays like hot straight guys of all ages, but the only young gay guys who want old gay dudes are the ones with self-esteem issues, the ones not hot enough to get an attractive guy their own age, or ones in need of money. Men, especially gay men, are visually oriented; it's all about being young and hot.