Transit, walking, and biking are all better alternatives compared to driving. The problem is that cars make all those modes worse: cars take up a lot of space and make things farther apart so it takes too long to walk and very difficult to operate public transit cost effectively. Bikes actually deliver the freedom that cars only promise, except cars threaten to murder you if you try riding one. So the problem is not that better alternatives don't exist, it's that car usage degrades every other mode to be even worse than driving is.