Kids end up, generally, between the range of their parents, so a 6’ woman and a 6’2 man will generally have sons who are taller than their father (the mother’s range is “unusually tall,” while that father’s is just “tall”), but their are tons of things that affect height. My brother is a lot taller than my father, and while it’s true that my mother is a little taller than average for a woman, my brother also probably gets some recessive genes from my father, because he has a tall brother. My paternal grandmother, who was only 5-even had a very short mother, but a very tall father (there’s only one picture in existence of them side by side, and she seems to be wearing heels, and yeah, she’s a lot shorter. My paternal grandfather was only about 5’7, though. I don’t know how tall his biological father was, because he died when my grandfather was 5 years old, and there are no pictures of him.
I’m only 5’5, and while my husband is 6’2, our son is on his way to becoming much taller than 6’2. He’s nine years old, and already 4’11, which puts him above the 99th percentile for his age. When you see him with his class at school, he looks out of place. I’m actually kind of hoping he won’t have an adolescent growth spurt, because if he keeps growing at the rate he’s growing, plus puts on five of six inches in just a couple of years when he’s 15-16, he could end up being 6’7.
But at any rate, those are recessive genes. My husband’s mother is very short, so he is a little shorter than his father, who was 6’3, and my great-grandfather on my mother’s side was 6’4, and born in the 1880s. So we have genes all up and down the charts, but the boychik seems to have gotten just the tall ones (FWIW, his doctor says there is nothing wrong with him).
But yes, it is typical that, barring disease or abnormalities like a form of dwarfism, a man will be taller than his mother. As noted, it is also typical that a man is taller than his wife. In couples where the man is shorter, all bets are off.