What do you define as several? If you don’t want to play, no one is forcing you. Ranked is accessible to everyone, but it’s not everyone’s cup of tea. The fact that it takes effort to change your rank and for the system to get a good sample of games to assess your MMR shouldn’t be that surprising. You can’t be expected to rank high or quickly from just a couple of games.
I feel like so many people are so easy to mock ranked for how long it takes, but at the same time are willing to play thousands of games in QM or ARAM. It’s kind of eye rolling really.