Imagine you're a person who occasionally needs to use a bathroom, or has anxiety about roads/traffic/driving, or claustrophobia from the idea of being stuck in traffic. I know people with all of these issues. Well-designed public transit like trains addresses them far better than personal vehicles.
I'm also not sure what personal freedoms you think don't exist in Europe or Asia where such well-designed transit networks exist. You can still have a car, you just don't need to have one.