Peyot – How Long?
Peyot refers to the hair between a Jewish man's ears and his forehead. Jewish men are commanded not to destroy or "round off" this hair.[i] As in many areas of Torah there will be differ opinions of how we are to fulfill this commandment. Some say not to cut them at all. Some say not to allow them to grow long enough to intermingle with the beard. Almost all hold that you can cut them with a scissor, but not a razor, and on and on.
The range of legal lengths of the peyot seems to be; at a minimum, "just not shorter than the hair next to them," or all the way up to, "never cut them at all."
What do I say the proper length should be? At the very minimum, do not cut them shorter than the distance between the peyot and the bridge of your nose.
The reason for this is if you find yourself walking down the street and you are looking at something you would be better off not looking at the "wind" can blow them into your eyes and… "Ow! Okay! Okay! I got the message. Thank You."
[i] Leviticus 19:27