Why do God accept suffering?

People think suffering is bad, death is bad, but is it really? I think everything has a positive and negative aspect. If you experience pain something good will come out of it. How can we be supportive to others if we have not experiences hardship ourselves? How can we help someone if we ourselves have not overcome the same problem? How can we feel empathy without insight? How can we have sympathy if we have not suffered? We want to be happy, but can we feel deep happiness without feeling deep sorrow first? Can we develop spiritually without tribulations? Can we experience truth without first experiencing lies? Can we experience love without indifference? I think all the victims of war make humanity rise in consciousness. Suffering is for us to develop spiritually. That is what we are here at earth to do.