Demeaning old age as though it is something to avoid is devaluing those who are elderly. We ought to be celebrating where we are in life, even more so, the many years we lived that gave us experiences that grow wisdom within our soul.
2 Corinthians 5:1-10 "5 For we know that if our earthly tent which is our house is torn down, we have a building from God, a house not made by hands, eternal in the heavens.
2 For indeed, in this tent we groan, longing to be clothed with our dwelling from heaven,
3 since in fact after putting it on, we will not be found naked.
4 For indeed, we who are in this tent groan, being burdened, because we do not want to be unclothed but to be clothed, so that what is mortal will be swallowed up by life.
5 Now He who prepared us for this very purpose is God, who gave us the Spirit as a pledge.
6 Therefore, being always of good courage, and knowing that while we are at home in the body we are absent from the Lord—
7 for we walk by faith, not by [d]sight—
8 but we are of good courage and prefer rather to be absent from the body and to be at home with the Lord.
9 Therefore we also have as our ambition, whether at home or absent, to be pleasing to Him.
10 For we must all appear before the judgment seat of Christ, so that each one may receive compensation for his deeds done through the body, in accordance with what he has done, whether good or bad."
We will not be judged by our youthful look, but by our character, as we walked with Christ, whether obedient or disobedient. Believers do not lose salvation but will be judged according to their reward. Their appearance and abilities in old age will not be a factor, except their attitude toward God's will for them will be everything.