What causes a person to be blunt and straightfoward?

There is a fine line between brutally honest and cruel
The wise know where the line is .
My daughter had to be reeled in on how blunt she was ,,she was honest ,but also very cold ,and I am not with that ,when you lack tact and respect often nothing is accomplished with that .
But the way you say things can be more effective than what you say ,
When honesty is tempered with kindness ,you can teach and encourage .
or you can condemn and destroy and even scar .
You said your Dad had your respect ,and the fact you mention him in such a way shows it .
He must be a wise man ,,able to teach and be honest
Sadly that is a quality many Dads today lack .
But I would say Dad is a lucky man ,he also has a Daughter that know respect .
that is a quality in short supply now days too .
Raise the standard young lady ,the world needs more youth like that
Who know how to be honest ,but kind as well