having three legs instead of two
a right and left and one in the middle shoe
a pair of socks would be no use
and with two crotches you have two sets of genitals, and not necessarily two of the same kind
and what size would your buttocks be?
you would run much faster and have one foot resting on the dash when you drive
trousers could be fun to put on in the dark
and you would have five extra toenails to cut
yes given the chance I would take three and blow the consequences, three is my lucky number and one more than two.