most cars are going the same way
That's a ridiculous comment! Are you seriously saying that everybody on the roads is going to the exact same place? one bus is the same lenght of 3 or 4 cars. each car holds just one person on average and a bus god knows
Most cars hold five people. Most buses have about the same number on board at any given time. But that aside, I can't think of anywhere I'd ever go that'd be more practical by bus than by car. And if its me, the missus, and four kids, the bus is a definite no-no due to the cost if nothing else. The filth, noise, smell and general impracticality of public transport are further reasons.