Why do some people have sutures in the front of their ears when they have a neck lift and others do not?

Sutures in front of ear or not. If a patient is having only the neck lifted then there r no sutures in front of the ear. However if they are having a facelift to get rid of jowls and excess skin then they have stitches in front of the ear( or as I have done for 35 years INSIDE THE EAR )so there is no scar in front of the ear. 

When I perform a PURE neck lift, my incisions are placed under the chin and behind the ears.  Sometimes it is necessary to perform a lower face lift in conjunction with a neck lift.  This is particularly true in cases where there is a particular redundnacy of skin.  If this is the case, the incision may need to be carried in front of the ear.  When a lower face lift is necessary, for optimal camouflage, I actually hide my incision behind the tragus of the ear.  Some surgeons, however, place the incision in front of the tragus, which results in more scar visibility.  If you are considering this procedure, the best thing to do would be to seek the consultation of a facial
plastic surgeon or plastic surgeon and have a physical exam performed.
Realistic expectations and technique options with pros and cons of each could be discussed at that time.  I wish you well!