What is the usual protocol for late puberty in boys

to wait.

Generally, most people are maturing sexually at an abnormally young age due to the many hormone mimics in our food and environment. Therefore if someone is healthy and relatively protected from the insults of the age they will be maturing slightly late. (that is a good thing). In extreme cases, some intervention would be appropriate.

To Diagnose:
Late puberty is defined as the lack of pubertal development at two standard deviations above the mean age for the general population of the geographical area. In practical terms, this is a chronological age of 14 years for males (testicular volume <4 ml) . The goal of the assessment is to determine whether the delay or lack of development is due to a lag in normal pubertal maturation or represents an abnormality that must be investigated. Etiologies of pubertal delay & pubertal failure include: a) Constitutional delay of puberty (healthy patients with a clinical history of delayed growth & development; b) Hypogonadotropic states (congenital abnormalities, tumours, endocrinopathies); c) Hypergonadotropic states (chromosomal alterations, syndromes, genetic disorders, radiotherapy/chemotherapy); d) Secondary to chronic illness (organic abnormalities, oncological diseases, malnutrition, eating disorders & endocrinopathies). Diagnostic evaluation must include: a detailed physical examination, including auxological parameters (height & bone maturation), personal & familial antecedents, measurements of general hematological & biochemical parameters, gonadotropins, prolactin, thyroid hormones, sex steroids, growth hormone & growth factors. When necessary, an MRI must be performed. A karyotype is indicated in girls with delayed puberty & short stature & in boys who have small testes & hypergonadotropism.

To treat? Usually with hormones. Treatment & side effects vary for each patient. He will be followed closely by his doctor.
Does ur friend is son have klienfelter is syndrome by any chance?

I wouldnt sweat it just relax shaving is a pain, the over whelming urge to hump something aint fun either, the whole hair around the genitals thing over rated. just let the boy know he aint the first wont be the last and its just as bad for those who go through it early