Yes, but six or seven is on the young side of the stage of moral accountability and ability to understand GRFS.
Yes, it is. But we shouldn't forget that it is ultimately God who gives understanding (Col 1:9; 2Tim 2:7; Prov 2:6, etc.). Since He can raise the dead to life, then imparting understanding to the human heart should be no problem for God; for He is greater than our hearts (1Jn 3:20).
Well, arguments and disagreements on CC indicate that imparting understanding and love is a problem for God--
a problem He created by creating humans with MFW, so that His imparting of u&l is not irresistible or simply a
matter of programming automatons.
If you have never perceived yourself as being a HELPLESS, HOPELESS sinner in dire need of God RESCUING you by imparting LIFE to your dead soul, then I can only surmise that absent that kind of humility that you very likely think you brought something to the table that merits God's grace. God actually repaid you for having the smarts and good sense and piety and wisdom, etc. to come to the right decision. If you believe in your heart of hearts that your personal, "freewill" choice earned you God's favor -- that your choice triggered God's salvation -- then you're very likely in deep spiritual trouble.