The predisposition to crib will be inherited BUT with two brood mares & foals it was the other mares foal (that did not crib) was the one that started!!
I bred from a mare that cribbed very badly, to the extent of pulling up fence posts in sequence in the field (despite ad lib hay).
I never used a cribbing collar (they are so cruel) and my foal is now a 3yo without any stereotypies evident.
S