Without memory, you cannot develop judgment - you have to be able to recall what worked and what didn't work, and make sure you only use the techniques that DID work.
I have had students up to 60 and most of them were plodders, one took 70 hours to go solo and then quit because he had at least achieved something. Another kept trying to pass his biennnial flight review but could not judge where he was going to touch down off an auto and couldn't remember what a normal glideslope looked like.
Sadly, I am 60 now, and there are 3 things about old age.
The first is that your memory fades.
The ...... umm ...
