We don't know what his income is, only his state pension which he's only had for 5 years. He's been here 15, not surviving on fresh air (he has a private pension)
From the story...."Adding to his woes is a modest private pension that fails to deliver the retirement he envisioned."
He must have something as he managed to retire at 55, 10 years before starting to receive his state pension.
Provided you can withdraw money instantly it ought not be a problem, apart from your loss of interest. (might be an idea to post this in the right place for better response).
Correct. Except the license Issue date (there is no "from") will remain the same as the current license, which will be the date you first got a 5 year license.
A good podiatrist will help you. But you don't mention your location. That would help. In case of Bangkok I use this clinic;
https://www.footcare.co.th/