you are conflating a lot of things here. 0. online dating isn't blind dating. physical attraction (important in most romantic relationships) is readily apparen

you are conflating a lot of things here. 0. online dating isn't blind dating. physical attraction (important in most romantic relationships) is readily apparent generally. 1. AFAICT (non expert) blind date "success rate" varies immensely depending on whose PoV you assume. even those who get lots of matches may want long term, but only find short term options (or vice versa) 2. you probably don't want to start pulling people out of a hat to do dental procedures. credentialing is important to many people for certain professions. these things take years and years of training and skill building. most romantic things don't take the same sort of specialized training.