The graph labeled What Women Think, by Age and Religion shows that younger women are more inclined to view meeting alone as inappropriate, by a wide margin. Surprising.
1. Harrasment is more well-known now, and less tolerated 2. The call-out culture today doesn't actually prepare people to interact with members of the opposite sex as adults.
I believe (2) is more likely to be true. What I mean by two is that, with young people being encouraged to "call out" any interaction they might find slightly uncomfortable, they develop a sense of fear and wariness around cross-sex interactions, and can't manage their feelings of attraction.