Why do most child actors grow up to be shorter than the average height?

[avg123]

Mostly men. Think Daniel Radcliffe.

[Volbet]

Do you have any numbers to support that child actors actually grow up to be shorter than average?

It's hard to come up with a working hypothesis without any data.

[CryptoMatt]

Well look at the parents, if they are both tall then it’s weird. If they are both shorter then it’s genetics 

[dalekphalm]

49 minutes ago, avg123 said:

Mostly men. Think Daniel Radcliffe.

http://www.imdb.com/list/ls008342867/

1. Ron Howard - 1.75m

2. Christian Bale - 1.83m

3. Elijah Wood - 1.68m

4. Leonardo DiCaprio - 1.83m

5. Sean Astin - 1.7m

6. River Phoenix - 1.78m

7. Matt Dillon - 1.83m

8. Christian Slater - 1.74m

9. Ricky Schroder - 1.78m

10. Dean Stockwell - 1.68m

 

According to this, the average height in the US is 1.75m:

https://en.wikipedia.org/wiki/List_of_average_human_height_worldwide

 

Out of the top 10 male actors on the list (The list goes further, I just stopped at 10), 6 of them are at or over the average, with a 7th only 1cm short (Sorry Christian!)

 

So by that statistical analysis, "most" male child actors do, in fact, grow up at or higher than the US national average.