I love that your post gave a probabilistic binning of someone who doesn’t have a traditional social media account, which was unironically confirmed by people replying with rustled jimmies.
Come on folks, it should be clear from context that she is saying that a single woman setting up dates is going to use what limited info they have to avoid stalkers, cheaters, red pillers, and anti social people. That this might filter out perfectly normal people along with the creeps is the cost of maintaining safety and not wasting time, which is pretty much par for the course in dating. There’s also a difference between exchanging info after a brief meeting, and actually knowing a person for an extended time and then dating. I doubt OP is saying that someone they studied with for three semesters would be excluded for lack of social media, because they have real life context and don’t need the proxy filters.
Also, getting real close in these replies to “but I’m a nice guy” and “I’m not like other girls.”
Some suggestions, either online or local;
Bookclubs
Walking groups
Chess, board games, table top
Theater groups (meetup groups to go to the theater as a group)
Escape room group meetups.
Depending on if you are in a city or a smaller town the locals options will vary. I’d look at meetups site and browse local activities. For most any activity you will find a range of ages, but some will skew more one way than another.
Best of luck!