If the young people are too immature, to unintelligent, too busy to be bothered with speaking to people about a proposed shidduch on their own, without Mommy making their decisions for them, they are not ready to be dating, much less get married.
This is categorically untrue. Just take chassidim as an example. The parents make the decision who they meet, and a very high percentage marry the first. Are they not ready to marry?