No, there is no reason to believe that Jesus wore his hair long. Was the hair of Jesus long? Only Nazirites were not to cut their hair or drink wine, and Jesus was not a Nazirite. So he no doubt had his hair neatly clipped like any other Jewish male. (Numbers 6:2-7) As “the Lamb of God,” Jesus was without defect, so no doubt he was a fine-looking man. (John 1:29; Hebrews 7:26) Of this the book Art Through the Ages says: “As a theme, the Good Shepherd can be traced back through [pagan] Greek Archaic to Egyptian art, but here it becomes the symbol for the loyal protector of the Christian flock.” In time, this pagan influence became still more pronounced. “Jesus,” the book adds, “could be easily identified with the familiar deities of the Mediterranean world, especially Helios (Apollo), the sun god [whose halo was later given to Jesus and then to the “saints”], or his romanized eastern aspect, Sol Invictus (the Unconquered Sun).” In a mausoleum discovered beneath St. Peter’s in Rome, Jesus is actually portrayed as Apollo “driving the horses of the sun-chariot through the heavens.” History shows us that it was the artists in the Middle Ages that began this misconception about the physical appearence of Jesus.

Yes, I can give many answers why; He was a Nazirite (Essene) for one, second, if your a male with short hair you were either a pagan, slave or an idolator. Short hair on a man is a disgrace and a sign of weakness even today as it was 2000 years ago, just look around at all the greedy men with short hair, their god is money.

Yes. It was Jewish tradition to have shoulder length hair, sometimes with a plait at the time of Jesus. In contrast, the Romans had short cropped hair.

Yes. Long hair meant youth, and that you and your family were respected and you were doing well morally. There was also an emotional bond to hair in that culture during that time. Women cut their hair in mourning. When men were disgraced, they were forced to cut their hair as well.