Keyplus -
You asked, “... let me know who are the people today worshipping or praying like that?...”. I thought your post was a little obtuse so I've quoted the Biblical passages from the King James version so that we can all follow what you're saying:
Genesis 17:3 - “And Abram fell on his face: and God talked with him, saying...”
Numbers 20:6 - “And Moses and Aaron went from the presence of the assembly unto the door of the tabernacle of the congregation, and they fell upon their faces: and the glory of the LORD appeared unto them.”
Joshua 5:14 - “And he said, Nay; but as captain of the host of the LORD am I now come. And Joshua fell on his face to the earth, and did worship, and said unto him, What saith my lord unto his servant?”
Matthew 26:39 - “And he went a little further, and fell on his face, and prayed, saying, O my Father, if it be possible, let this cup pass from me: nevertheless not as I will, but as thou wilt.”
So your question would be: Why do Christians not place their heads on the floor whilst praying? It's an interesting question and as such, why don't you start a new thread on this very subject?