First of all, Jesus Himself was baptized.
Should we not follow His example?
Mat 3:13 Then cometh Jesus from Galilee to Jordan unto John, to be baptized of him.
Mat 3:14 But John forbad him, saying, I have need to be baptized of thee, and comest thou to me?
Mat 3:15 And Jesus answering said unto him, Sufferit to be so now: for thus it becometh us to fulfil all righteousness. Then he suffered him.
Mat 3:16 And Jesus, when he was baptized, went up straightway out of the water: and, lo, the heavens were opened unto him, and he saw the Spirit of God descending like a dove, and lighting upon him:
Mat 3:17 And lo a voice from heaven, saying, This is my beloved Son, in whom I am well pleased.
We are expressly told baptize new believers.
Should we not obey the voice of our Lord and Savior?
Mat 28:18 And Jesus came and spake unto them, saying, All power is given unto me in heaven and in earth.
Mat 28:19 Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost:
Mat 28:20 Teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you alway, even unto the end of the world.Amen.
For what little my opinion might be worth, here it is.
It is all about attitude. If all you are doing is following some church, then all that is going to happen when you go down into the water is that you are going to get wet.
On the other hand, if your heart is focused on Jesus...