This is the exasperating part about learning to speak Spanish using a textbook; you must guess the grammar rules because the textbook won't tell you. So, you use the English rule and hope and pray that it is the same in Spanish, and you'll be right the majority of the time but often wrong. Spanish textbooks written 100 years ago tell you the grammar rules and are more useful than recent textbooks.
While interesting, I rarely found knowing grammar rules beyond some very basic ones to help all that much for learning to speak a language, compared to language exposure and speaking practice.
I would be very surprised if there was even a single natural language with a complete grammar that actually describes the spoken language. It's all just conventions. Lots of people confuse common patterns with rules.
Government is not the solution, government is the problem. There is no such thing as a healthy functioning regulatory body - they all regulate too much and some should not exist. Don't call your legislator because the most dangerous words in the English language are, "I'm from the goevrnment and I'm here to help."
This bubble is caused by excess competition. There are 4 large companies who believe that a large new market is being created so each is investing large amounts without any evidence that there will be a single winner that dominates the future market. None of these companies has anything remotely resembling a monopoly except for Amazon in online retail.