Why do people think the earth is only 6000 years old?
Most creationists think they know more than the huge body of professional scientists. They will claim the methods of dating are wrong using an inaccurate model of how those dating methods actually work. Then they conveniently ignore when disparaging dating methods are used that still yield the same results.
God created the earth as we see it with its apparent geology and appearances of age. Either you believe in God or you dont. 1 Corinthians 1 21 For since in the wisdom of God the world through its wisdom did not know him, God was pleased through the foolishness of what was preached to save those who believe. 22Jews demand miraculous signs and Greeks look for wisdom, 23but we preach Christ crucified: a stumbling block to Jews and foolishness to Gentiles, Matthew 11:25 At that time Jesus said, “I praise you, Father, Lord of heaven and earth, because you have hidden these things from the wise and learned, and revealed them to little children. 2 Corinthians 4:4 The god of this age has blinded the minds of unbelievers, so that they cannot see the light of the gospel of the glory of Christ, who is the image of God. Luke 8 9 His disciples asked him what this parable meant. 10 He said, “The knowledge of the secrets of the kingdom of God has been given to you, but to others I speak in parables,