I'm in my 30s and I don't feel that way at all. Yeah, there's lots of shitty people or ones I don't vibe with but that's been the case my whole life. Many of the ones that I'd have considered a poor match in my early 20s have matured since then into much more likable people. If you're using dating apps though, you are probably going to get more exposure to the dregs. One of many reasons I don't touch those. You can still meet people the old fashioned way by going out and doing things. You may not find someone as quickly but you're not getting constant negativity thrown in your face.