Height is mostly downstream from genetics ( barring extreme nutritious deficiencies)
Same with iq
Discussion
I’m same height as other parents but my kids are enormous in build against their peers. Just anecdotes from church and my small town, but dang our lifestyle (homeschool/rural/home food) really seems to make a difference.
How can you write off biological inputs so quickly when it’s plainly observable even in your garden, conditions for growth make a huge difference