People appreciate long lives. Most people want to live longer, admitting that they are not ready to meet the Lord yet. Someone I knew well passed away at 101 and right now I have quite a few friends whose parents are all in their 90s. Is longevity a blessing? Many martyrs and saints die young, then we have St John the Apostle living to a ripe, old age. When one lives long, it could be that God has more work for him to do. If the person has not come to God yet, it could be that out of his mercy, the Lord is keeping the door open a little bit longer. Then there are oldsters who suffered ill health in their old age ~ if the Lord is making that part of their purgatory, then it's something to rejoice about. What I am most concerned about are those nonbelievers who are basically not good persons and seem to have everything they need in this life. Recalling how Jesus taught to the disciples that hypocrites who perform good deeds in public to be seen and noticed have already received their reward, so it's possible that these nonbelievers are receiving all their reward in their long lives now.
At any rate, we shouldn't be concerned about how long we live ~ any length God decides on for us is right and good.