This has been going on for years. One of the great "mystery" recruits who arrived John Reik Suas----who went to Our Savior home of Tiadane Drame's Trafficking network (Cheick Diallo is another you'll all remember) came over and tore up a Camp/Summer Session and everyone wanted him until they found out he's closer to AARP then being an actual Teenager. He was on every team's radar but eventually started out at Mississippi St and didn't do anything there.
Here's another for you-Dikembe Mutombo reportedly born in 1966 was 23 yrs old when he was a FR at Georgetown in '89 season if you go by his reported date of birth. That meant he was 25/26 when he was a Rookie with the Nuggets and he played 18 yrs. Some close to Georgetown and NBA think Mutombo was at least 30 when he left Georgetown. (Mutumbo sat out playing in '88 as a RS but stayed 4 yrs only playing 3 due to the language issues he had on Standardized Test Scores and was listed as a 5'11 PG from Kinshasa, Zaire (at the time was name of country not the Democratic Republic of Congo)
If you want to believe these are all young men-go ahead. Many will believe Khaman Malauch was a young teen at Duke when reality is he's closer to being as old as Zion Williamson (24) then he was Cooper Flagg or Kon Kneuppel.
Cheick Diallo played at Kansas. He was MVP of the McDonald's All American game because he got a bunch of dunks and layups against the likes of Stephen Zimmerman (another guy everyone wanted). He never could shoot or dribble but was good in a terrible high school class.
Dikembe Mutumbo could have been a couple years older, but I doubt he was almost 50 when he was still playing in the NBA. It would have meant his older brother Ilo lied about his age as well.
Think teams are more interested in what potential these players might have. Most of the players from Africa didn't start playing basketball until later in life compared to the US, Canada, and European players. They are seen as having greater potential because of that.