If you are registered, you get access to the members only section, can participate in the buy & sell second hand forum and last but not least you can reserve your preferred username before someone else takes it.
Some of us could get the same idea well before we qualify as geezers I was almost that bald by 25, my brother too. The really sad thing is that everyone else in our family had full heads of hair till they were at least 60. Genetics can be mysterious things.