Scripture is filled with examples of men and women whom God used late in life, often with great impact - men and women who refused to use old age as an excuse to ignore what God wanted them to do.
Sincere Christians can disagree about the details of Scripture and theology - absolutely.
Scripture tells us that there will be signs pointing toward the return of the Lord. I believe all these signs are evident today.
We must never minimize the suffering of another. Scripture's mandate to us is, "Weep with them that weep." (Romans 12:15, KJV)