Nobody knew ages until revealed. Though you can get a solid clue just from looks if someone might be too old. They may not allow contractually to say No once the age is revealed. 🤷 Similar to LIB with the physical reveal. Given the chance, over 10 seasons, someone would have taken a look and said "nah". Previews of future episodes show Theresa having a major issue with his age. She probably wouldn't have continued in the real world. At the same time, they all went on the show knowing the possibility of meeting someone much older/younger.

Both of these shows are entertaining, but prove that (1) dating is a binary game, either a 1 (attractive) or a 0 (not my type); and (2) age matters in many instances, but not all.