It just sad coming up with stats for older people. The constitution go down as we age. I did one of these for "classic chris" with the idea that he qualifies as a different character, although it was more for a different setting where typical DnD rules don't apply. I was pretty mean in the physical stats, even if adjusting for different standards. I hypothesize that WISDOM is the lowest trait at any stage of his life, and a mage chris would be interesting in a universe where low wisdom meant more power.
Classic Chris Chan
STR 9
DEX 11
CON 14
WIS 5
INT 14
CHR 8
Tainted Christine Chan
STR 8
DEX 10
CON 12
WIS 7
INT 13
CHR 6
How the hell did his WIS go up 2 points, considering how much less attached to reality he is? WIS is the hardest mental stat to quantify, but it's basically your mental defense, how willful you are, how much you pick up on details, and how grounded you are in reality. The higher your WIS, the easier it is for you to spot things that are out of place or shrug off mental assaults.
Chris has absolutely lost WIS as he aged. While his mental state was never amazing, his rapid decline from 2017 onward is not something where he would outright GAIN WIS. He used to be a gullible, naive idiot. Now he's firmly convinced he's married to a Pokemon and three Sonichus, thinks he is a deity in contact with other planes of reality, and has no comprehension of the divide between reality and fiction. Here's my statblock for him, assuming 5E, no class features.
Classic Chris
STR: 8 - Weak and out of shape.
DEX: 9 - A little bit slower and clumsier than average
CON: 14 - Surprisingly tough, considering his environment
INT: 10 - Actually not incredibly stupid. Just lazy and egotistical
WIS: 7 - Gullible, naive.
CHA: 8 - Cannot effectively socialize
Current Chris:
STR: 6 - Has gotten weaker and fatter with time
DEX: 8 - Slower, less able to respond to things
CON: 13 - Has a high pain tolerance, does not get sick often (considering environment, diet.). Age will take this soon.
INT: 9 - Has probably gotten dumber over time.
WIS: 4 - Any attachment with reality he had is long gone. Incapable of distinguishing reality from fantasy, and his ideas from the ideas of others.
CHA: 8 - Has managed to somehow leverage infamy into profit. Still incapable of socializing.