The “never too old” trope is not entirely true w/r/t medical school.
https://www.aamc.org/download/321468/data/factstablea6.pdf
Per AMCAS date, 35 was the 99% percentile for age of new matriculants during the 2017-18 application cycle. That means fewer than 200 individuals aged 35 or older are admitted last year.
Matriculants in their 40s and 50s are the rare exception and not the norm. (That said there was a 52 year old in the class ahead of D1 in med school.)
P.S. the old premed site doesn’t exist any more. It’s been gone for a couple of years.