Visitor Visa - B2

Hello everoyon,I am businessman doin business from last 10years.Good income,wife teacher,two child one is 6years old another 3 years. All family travel to Australia and europe together. Got Canada multiple visa on 27th april but we thought travel together both country Canada and US. How interview gone i am surprised didnt chk anythng not even passport

Me & my wife Good morning
vo same

vo why you want to go US?

Me for tourism and visit family friend.

vo wot you do sir?
Me business.
vo describe your duties?
me explain.
vo anual income
me told.
Vo sponser name and for how many days you want to spend there?
me. told everthng clear and loud.
Now vo ask my wife question.
vo wot you do madam>
my wife teacher.
vo your anual income?
my wife told.

Then type and ask sorry i cant give you visa.

Question is we have good profile,good, travel history ,earn good money here,good asets.
Can anyone tell wot is there crtiria of giving visa so confused.