Dads joke) The same reason 10 pennies is worth more than 9.
She couldn't find the 10 key.
Me hands her money: When we get to the movies, buy a large popcorn. 10: This is only $2 M: Exactly
10....one to bake the cookies, and 9 to peel the M&Ms
She didn't like it because she couldn't get channel 9.
They both need to be changed after a while for the same reason
Someone who knocks on your door at 6 a.m. for no reason.