A 16-year old comes home and says "Dad, I just got my driver's license and 
would like to use the family car."
 
Father replies, "O.K., son.  But, first, you have to get good grades in
school, keep your room clean, keep the yard trimmed, and cut your hair.  
Come back when you've done all of that.
 
Well, a month passes and the son approaches his dad, report card in his hand.
"Dad, I got great marks on my report card.  I've been keeping my room as 
neat as a pin, and the yard is always ship-shape. How about letting me use 
the car?"
 
Father replies, "But, son, you didn't cut your hair." 

Son says,"But, dad, Jesus  had long hair

Father replies,"Yes, you're right.  And he walked everywhere he went.