Some people blame God for the pain and suffering caused by their own choices.
Some people blame God for the pain and suffering caused by other people's choices.
Pain and suffering as tools for learning and growth are a last resort.
Primarily, the tools for learning and growth are curiosity and intimacy with God.
Truth doesn't necessarily cause pain, it reveals the pain that was already there.
Primarily, the sources of human pain and suffering are believing and acting on lies.
Which literally creates hell on earth.
God's will is not hell on earth, but Heaven on Earth, and through Jesus Christ, God has enabled humanity to end lies, pain and suffering, and hell on earth, forever.