I don't know why anybody would use anything other than black for normal writing, however red was used on important pieces of work in the past on certain things people wanted to stand out like the big versals at the beginning of pages, headlines at the top of the page, or the spoken word of God in the bible.
I do too, but I get busy. Mostly all my days are lived as though I'm that chrome colored ball in a pinball machine. Sipping coffee all day, unless my stomach really growls or something on TV temps me I often just forget. My multi tasking skills shock some. I do a lot in a day, a whole lot. My friend says the milk in my coffee keeps me from getting hungry, plus the gallons of water I ***** at the same time.