The average kid’s allowance rose faster than American workers’ salaries in 2018

"Parents should ensure they are offering children equal opportunity to take on high-paying chores ..... Boys ages 5 to 7 years old earn 50% more in weekly allowance than girls"

Interesting, so the pay gap in inherent (not sexist). Or parents are more sexist than the general population, or anti discrimination laws have been pretty successful in narrowing the gap?