Fix grammatical mistakes in this sentence: This allows the workforce to start accumulating their wealth until the retirement age and at the same time, especially for the aged to remain productive through skill upgrading.
The old man is a man who is not a man of his age.
The old man is a man who is not a man of his age.
The old man is not a man of his age.
The old man is not a man of his age.
The old man is not a man of his age.
The old man is not a man of his age.
The old man is not a man of his age.
The old man is not a man of
The old man was a very old man.
The old man was a very old man.
The old man was a very old man.
The old man was a very old man.
The old man was a very old man.
The old man was a very old man.
The old man was a very old man.
The old man was a very old man.
The old man was a very old man.
The old man was a very old man.