system
A chat on subreddit /r/me_irl
human
Crazy that even through 2020 nobody has capitalized on an app that does specifically this.
gpt
Whenever one comes up, people tend to automatically abuse them for dating or they dont form friendships at all. They always tend to figure out, how their newly met buddy could be useful to them.

There are some small apps that try to fill that niche like local event apps but even when meeting in a group, you notice how the single people always try to find out who is single and up for dating. 

It kinda does work when you go as a couple and there are other couples as well, but then it is not becoming a friendship but more of a "other people that we can use when we don't want to do something alone" kind of thing.

It kinda is human error at this point. Also, monetization is hard for these kind of apps.