The message(genesis:4)

hello!
soo a lot of things going on in genesis 4 a lot of sins. Having already
Adam and Eve gets 2 babies and one was better the other one so he
gets jealous and kills him. Thats two sins. After God ask where his brother
is and he says that he doesnt know. Thats lying to God. So Thats three sins.
This are pretty big sins from the beginning. After that Cain the evil brother
go lives on his own and gets alot of grandsons and granddaughter. Pretty much
in the bible it said this person gave birth to this and this to that and so on....
At the end of the verse it said That's when men and women began praying and worshiping in the name of God.
Shouldnt they have started praying and worshiping wayyyyy before like when Adam and Eve were there.

-Steven Hong