People might not randomly meet in the street, but they certainly meet through hobbies, work and random social events. If you have some dating requirement that instantly cuts your dating pool significantly, the chance of finding someone at a generic event also drops. This holds true for both divorced seniors and gay people, but with being gay there's the additional difficulty of narrowing down people at an event - at least the divorced seniors can identify the seniors in a room.

I understand that and I will acknowledge it reduces the pool compared to larger populations but it’s not 1/20 because the hobbies and friends and places one might frequent are often but not always obviously the places with like-people.