Except you benefit from roads even if you don’t use them: stuff delivered to you or via stores always comes via road. Even if it is transported by train, it still has to get to the shop. Mail service uses the roads, police, fire, ambulance also uses the roads. Firemen and Fedex aren’t doing their jobs taking the train. The refrigerator in your house didn’t arrive on the light rail. So even if you think you don’t use roads — you definitely benefit from them. However, I fail to see how I benefit from light rail I never ride. My electrician never showed up to my house on the light rail. Amazon isn’t shipping packages on BART. Public transit is a luxury, while roads are a necessity for the simple reason that ambulances, fire, police — they all need roads. Deliveries need roads, but they don’t need public transit.