Arising before age or before a wise man is one of the six-hundred and thirteen commandments, as it says “You shall arise before old age, and you shall fear your G-d!”, and many people are lax in this commandment and destroy much good. Similarly, a person is obligated to arise before his father, mother and teacher.
According to the holy Zohar the obligation to arise before an aged person is from when that person has reached the age of sixty years old. In the same way that a person should be careful and eager to fulfil the commandments of Shofar, Lulav, Sukkah, Tefillin etc., so too should he be careful to keep all of the commandments of the Torah. He should even be extra careful in these commandments as in direct proportion to the easiness of the commandment is the punishment for one who does not fulfil it.
