Final answer:
The lower percentage of early sexual experiences among UA students may be influenced by the United States' restrictive cultural attitudes towards sex and the varied approaches to sex education in schools.
Step-by-step explanation:
The percentage of UA students who have had sexual experience before 14 years old may be lower due to the attitudes and values surrounding sex education and societal norms in the United States. For instance, the United States has a notably more restrictive attitude towards sex among its populace compared to other industrialized nations. The cultural beliefs and possibly the lack or type of sex education could contribute to fewer early sexual experiences. Studies show that many U.S. adults prefer education on safer sexual practices over abstinence-only programs, which may impact the timing of when youths choose to engage in sexual activities. Additionally, the presence of comprehensive sex education has been linked to lower rates of teenage pregnancies and sexually transmitted infections, which may also discourage early sexual activity.