Ignorance of contraception

Incidence 
A Belgian survey revealed that between 30 and 40 percent of 17 year-olds who have never had sex, plus 10 to 15 percent who have, had not seen or had no idea how to use a condom. Among those who claim that they have had several sexual partners, more than 60 percent admitted that they did not systematically use this simple form of protection.
Reduces 
Type 
(F) Fuzzy exceptional problems