Driving is a milestone of freedom in our teen years, but it can become a safety concern when we’re older. Many people don’t spend a lot of time in the passenger seat while their aging parents drive, but that is the best way to gauge their competency.

AARP has created a list of the top 10 warning signs:

• Almost getting into accidents, with frequent “close calls”
• Finding dents and scrapes on the car, or on your parents’ property such as fences, mailboxes, garage doors, or curbs
• Getting lost
• Difficulty seeing or following traffic signals or road signs
• Delayed response time such as moving their foot from the gas to brake pedal or confusing the two
• Misjudging gaps in traffic
• Experiencing road rage or having other drivers honk at them
• Easily becoming distracted or having difficulty concentrating while driving
• Difficulty turning around to check over their shoulder while backing up or changing lanes
• Receiving multiple traffic tickets or warnings from traffic or law enforcement officers