If one's mental capacity is the reason to set the lower age limit at 35, there is definitely a stronger argument to set an upper age limit.
https://twitter.com/intelligencer/status/1098042522230771712 …
If someone with low intelligence, bad physical shape, and suspect financial track record like @realDonaldTrump can become commander-in-chief, there is no reason that a charismatic force with actual economic knowledge like @AOC cannot run for @POTUS.