Getting your Trinity Audio player ready... The attractions industry and its fans are growing up, but the old “kid at heart” adage is creating tourism business opportunities seeped with nostalgia. Grown-ups are embracing events once geared toward younger audiences. Central Florida attractions are playing host to adults-only coloring sessions, 21-and-up poolside foam parties, after-bedtime theme park outings and more. Psychological and financial factors are propping up the trend, experts say.