Why are people nowadays so flakey?

Like not saying everyone is but it seems like a lot of people are. When I was finding a room mate for my new apartment it seemed like a lot of the people were flakes, they'd say things like "I'm looking for other room mates too" and a couple of people said yes but one never showed and the other one canceled an hour before and never reschdueled. Before I meet my current boyfriend I had a dating app, and quite a bit of the guys on there were flakes. Not trying to be mean or judge some people here but why is that?
Why are people nowadays so flakey?
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