Answer:
Trust others.
I learned optimism from my parents. They live their lives seeing the good in others and trusting them because of it. They taught me it is better to trust and get burnt once in awhile than to live your entire life suspicious of everyone around you.
Family values influence the decisions people make both within the family structure and outside of it. Making a decision about important topics can be difficult, and people may feel helpless if they don't know which way to proceed. Therefore, having solid family values helps people make the right decisions in life.