"For thus saith the LORD to the men of Judah and Jerusalem, Break up your fallow ground, and sow not among thorns." Jerem 4:3
We must work with what we have, and this means improve it as we are able. Remember these verses:
"And he answering said unto him, Lord, let it alone this year also, till I shall dig about it, and dung it:
And if it bear fruit, well: and if not, then after that thou shalt cut it down." Luke 13:8-9
In the flesh a child comes at the first with great innocence until the innocence is lost. Hopefully, what replaces the innocence will something good, but we know from our own experience and the daily news reports of the world, that it too often is not so.
God will deal with us in our innocence when we come to Him that way, even if in our flesh we are already quite old. Then are we also the children. Then will He be able to fill us with good things without first having to clear away so much accumulated garbage. People who have live long in the world with its worldly ways almost always have a great deal of accumulated garbage, unlike the new born babe.
Adam and Eve started out clean as little children in the flesh will do now. Adam and Eve only made one mistake, but God helped them to get past it. They in their lack of innocence tried to cover themselves, but were unable to do it properly. God gave them a better covering to keep them until he would send a better one with His Son.
The covering of the Son is available now, but in addition to keeping out additional garbage the filth within needs to be removed to make room for better things from God.
Babies at the first have no good or bad habits. Bad habits left from before we met the Master will not only hinder us in our walk toward God but will lead us back to sin again. The habits have to go as well. We do have to finally come to Him as a little child. Will He not help us to do that?