English is a mongrel language, one that has evolved over a long period of time, and continues to change. So who decides what the rules of language should be?
Whether you’re writing a blog or a best-seller, you need to know where to make a start. Should it be at the beginning? Not necessarily. There are good arguments for starting in the middle, or even at the end.
To get the writing juices flowing, you need to really know who you are writing for. But not just in an intellectual way. You need to picture them, know them. Don’t try to write for the general public, or anyone who might be out there. Write for one person. Just one.