As our friend epi says, righteousness is a moving target.
A parent is pleased with a newborn about things they would in no way be pleased about were he to still be doing them at 3 years of age. The thing that will please the parent is a moving target.
I'd say that righteousness is only a 'moving target' in our own eyes.
God always intends for us to attain the full measure of Jesus, and He always accepts us with Jesus' full righteousness, right now.
Pleasing our earthly parents goes back to the imperfect pleasing the imperfect, if you will.
But God has a plan for us, right now, today, that He wants to do in is.
Not that we try to modify our behavior to fit, rather, we renounce all behavior entirely in favor of fixing our attention on Jesus, and then let Him lead our behavior.
Much love!
Mark