Nothing turns a family conversation into a courtroom faster than a set of car keys.

People hear Parkinson’s and reach for one of two lazy conclusions. One side assumes the diagnosis automatically makes the person unsafe. The other treats any question about driving as an insult, a betrayal or the opening move in a hostile takeover of adulthood. Both sides skip the part where somebody examines the actual driver.

I spent twenty-five years working in law, so I understand the temptation to want one fact that ends the argument. A Parkinson’s diagnosis is relevant evidence. It is not the verdict—and neither is pride.

Driving asks several systems to cooperate at once. Vision has to locate what matters. The brain has to judge space, divide attention and respond quickly. The body has to turn, steer, brake and recover from surprise. Parkinson’s symptoms, medication effects, sleepiness, OFF periods and changes in thinking can interfere with some of those jobs. They do not interfere with every person in the same way or at the same time.

A visible tremor does not automatically prove somebody is unsafe. A calm hand does not prove somebody is safe. The person who looks most Parkinsonian may compensate well. The person who looks fine may be getting lost, drifting across lanes or reacting too slowly. Neurology has once again declined to organize itself around what is easiest for strangers to judge.

The cost of taking the keys too early is not just inconvenience. Driving can be the route to work, medical care, groceries, grandchildren, friends and the right to leave the house without filing a transportation request. Remove it by stereotype and a safety decision can become unnecessary isolation.

The cost of waiting too long is less philosophical. Near misses, new dents, getting lost, unpredictable driving, significant OFF periods or repeated concern from people who ride with the driver are evidence too. Independence does not include the right to make everybody else participate in denial at highway speed.

What needs to change is the quality of the evaluation. Start with the treating clinician. Review vision, movement, attention, reaction time, medication timing and any episodes of sudden sleepiness. When the answer remains uncertain, a formal driving evaluation can include clinical testing and an on-road assessment with a driver rehabilitation specialist, often an occupational therapist with specialized training.

That is more useful than a family vote conducted between dinner and dessert. It may show that the person remains safe, needs specific training or restrictions, or should stop driving. The result should be respected, and it should be revisited when symptoms, medications, cognition, vision or driving history change.

Planning also has to begin before a crisis. If driving must be reduced or stopped, the replacement cannot be, ‘Call somebody whenever you need a life.’ Build the transportation plan: family schedules, rideshare, paratransit, delivery, community programs and enough money and notice to make those options real. Losing the driver’s seat should not mean losing authority over where the rest of life goes.

This conversation requires honesty from everyone. Families should bring specific observations instead of vague fear. Clinicians should assess function instead of hiding behind the diagnosis. The person with Parkinson’s has to be willing to hear evidence that may hurt, because a license is not proof that the current drive is safe.

Parkinson’s is not a driving test. It is one part of the evidence. Assess the driver, protect the public and preserve independence for exactly as long as the facts support it—not one day less and not one collision more.

TODAY’S DEFIANT TRUTH:

Parkinson’s is not a driving test.

Assess the driver. Not the label. And when the evidence changes, change the plan before somebody gets hurt.

Live Defiantly. — Richie Pikunis