Answer: Manfred's son is more likely to engage in delinquency and early sexual behavior.
Explanation:
Since the son is hanging out with older people he will want to be like them. He may also suffer from peer pressure and believe that he needs to do as they do to fit in with the new crowd.
Since the son is going to another part of the town, he may believe that his father and mother will not check on him. He also may do this so no one that he knows from his side of town can tell on him since they don't hang out there.