system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why can't you parallel park going forward?

Why can't you do the same steps, but just forward?
gpt
I think it's because front wheels turn but rear wheels don't. 

When you're parallel parking, you use your front wheels to point the back of your car at the curb, and your rear wheels end up parallel to it. 

If you're driving in forward, the rear of your car is still pointed to the street, and it takes a lot more maneuvering to turn them toward the curb. By comparison, if you're pulling up next to a curb with no cars around you, you turn your front wheels to the curb, then turn them parallel to the curb, and your rear wheels follow and align. But you don't have nearly enough space to do that when parallel parking.