My mom always took her coffee black, so did my grandma, so I think it imparted onto me. For me I like the bitterness, when I take a sip of my morning coffee and it hits there's nothing like it.
Over the years I've tried to get into sugared coffees and I still keep coming back to black. Although every now and then iced coffee with creamer and sugar is a good treat.
I started drinking it at work in high school, the place I worked had a deal with a coffee shop so we got free coffee. I always drank it with cream until I went to university and the first day I woke up and realized I didn't buy any, so I decided to just drink it black and never bought more cream.