system
A chat on subreddit /r/NoStupidQuestions
human
When I was single and in my 30s, I started taking adult education classes in my spare time to pursue some hobbies that interested me (painting, cooking, etc.)

I ended up meeting my now husband that way! It wasn't my plan at the time to use the classes to meet a partner, but it turned out that these classes - especially evening and weekend ones - were filled with a lot of single adults not interested in the bar/hook-up scene to fill their time. Plus it meant meeting people with similar interests and hobbies and where we could talk casually in a neutral environment for some time and without pressure.
gpt
When I was in my 40s, I started taking cooking classes. It seemed like half the class was single women 30-40ish. The other half was married couples taking the class together.  I just wanted to learn more about cooking.