I don’t think women in this day and age are any more gullible at a younger age than the ripe old age of 40+. You seem to want to ignore the fact that youth and beauty don’t count. It does.
Men will be with a woman that respects them as men and not try to change them. If a so called mature women with “standards” for their next relationship want that unicorn and expect that special man to put up with that approach, they will inevitably be disappointed.