The book The Single - Parent Family says: “Numerous studies show that boys raised without a strong male presence in their lives show insecurity about their gender identity, low self - esteem, and, later in their lives, trouble forming intimate relationships.
Raamatus „The Single - Parent Family ” öeldakse:„ Arvukad uurimused osutavad sellele, et ilma kindla mehekäeta sirgunud poistel ilmneb elus raskusi oma soorolli määratlemisega, madalat enesehinnangut ja hiljem ka probleeme intiimsuhetes.