I see folks in the office daily that are disappointed in some aspect of their adult children's life. It's heartbreaking at times. The issues are variable-disappointments in choices made (careers, marriage partners, etc.), substance use/abuse, lack of motivation/resiliency, etc..
My kids will be heading to college in the next 2-3 years. Hopefully they will continue to evolve into young adults that are:
1. Happy (following their passion)
2. Healthy (of mind and body)
3. Independent (to the greatest extent possible in today's economy)