Genetics plays a huge part huge part same as humans.   Bought some of my mama cows from guy A these cows are super chill kept some of their daughters and same way.  Bought some cows from guy C not wild but very very protective definitely keep and eye on them when touching a calf weather it’s theirs or not.  Guy A eventually bought a bull from C he has zero trust in him always have to have an eye on him.   Guy C bought his herd off guy D talked to a cattle broker he dealt with guy D’s cows the broker feeds 800 of his own is convinced guy D’s cows are bat crap crazy.  

Both of my school age kids are adopted.   If my son does something wrong a stern look gets the point across that was wrong. My daughter on the other hand you could scold her till you’re blue in the face and she’s like yah whatever.