This is a subjective opinion. Obviously, you have not heard of Irving Kahn, a trader who actively traded on the stock market at the age of 109 and who holds the record for this indicator. So age is not an obstacle to trading, as each person is different.
That's true, though I don't know the Irvin you're talking about but according to what you're saying, even though he's old, he still managed to carry out trading activities in the stock market to my knowledge and it seems that he still obtained a profit from it, which we can say is a large amount at least. Am I right or wrong?
I won't tell it to you the information provided on the Internet, as you will get more accurate information if you read the article about Irving Kahn on Wikipedia -