And presumably, logically, if the Sun was born, most likely the entire solar system formed with it. All planets orbit in the same direction. A few don't, but as we saw, the ones that spin backwards could be though of as spinning forward but having been knocked upside down. Virtually every moon revolves around their respective planets and spin around their own axes in the same direction as the planets spin and revolve around the Sun. Rho Ophiuchi .
Gravity inexorably pulls things in the universe together.
Clumps of mass only stay apart if something else opposes the inward pull of gravity. Some of these clouds are hot and the pressure generated by the hot gas is sufficient to push outwards against the self-gravity of these clouds that otherwise would squeeze the clouds. So the cloud should collapse faster and faster and faster, an accelerating collapse. A cloud that is collapsing due to gravity is undergoing gravitational collapse. However, nothing in the universe is sitting absolutely still.