The first stop on the Romans Road is Romans 3:23 and it warns us of our main problem called sin:

For all have sinned, and come short of the glory of God;(Romans 3:23)

We have all sinned. We have all done things that are displeasing to God. There is no one who is innocent.

Romans 3:10-12 says:

As it is written, There is none righteous, no, not one: There is none that understandeth, there is none that seeketh after God. They are all gone out of the way, they are together become unprofitable; there is none that doeth good, no, not one.