How is it different for older adults (60+) than adults (21-59) to overcome from depression?

Depression isn't a sign of weakness or a character flaw. It can occur to anyone at any age, sudden changes in life that are unexpected can't determine rather you're weak or not. Here are five factors that can influence depression for elders. Which is much different from adults because they still have family and friends that can help overcome these obstacles. When you are at an older age, you usually are on your own.

• Health problems – Illness and disability; chronic or severe pain; cognitive decline; damage to body image due to surgery or disease.
• Loneliness and isolation – Living alone; a dwindling social circle due to deaths or relocation; decreased mobility due to illness or loss of driving privileges.
• Reduced sense of purpose – Feelings of purposelessness or loss of identity due to retirement or physical limitations on activities.
• Fears – Fear of death or dying; anxiety over financial problems or health issues.
• Recent bereavements – The death of friends, family members, and pets; the loss of a spouse or partner.

Having a strong family, meaning your kids and grandchildren when you're older can be a HUGE influence to elders with depression. These will probably be the only support other than your spouse.  

 http://www.helpguide.org/mental/depression_elderly.htm