Section 2: The "Goofy" Start
There's nothing wrong with trying to make a sentence interesting. Given the importance of the first sentence, writers reasonably might want to have an interesting first sentence.
Like all big mistakes, mine started with a goat. (13 Gifts, Maas)
However, writers can be so focused on crafting an interesting first sentences that they violate one or more of the principles of good writing. Probably unintentionally.
These principles are easily followed almost all the time, yet they are routinely violated on the first sentence. The difference is striking.