Thinking mom and dad knew exactly what they were doing...My parents bought me the 12 & Under ticket through my senior year in high school when we skied at Mt Snow in the 80s. I guess that's fraud. I hated it because they used to write your age in a circle on your ticket in a sharpie and it made it harder to talk to boys when my lift ticket said 12.
And I'm with @raytseng - I feel like you should be able to sell an unused ticket in a pre-purchased 4-pack - but Palisades doesn't let you. To me, that's kind of lame.