A school district has ceased having father-daughter dances and mother-son baseball games.  Apparently, they were deemed to conflict with Rhode Island statute prohibiting gender based discrimination.   See ABA Bar Journal report.  The school canceled the activities after one mother complained because her daughter does not have a father and could not attend the dance. 

The school explained that the federal statute known as Title IX has an exemption for such activities, but the state version of Title IX does not. 

A chapter of the ACLU said the two events promoted gender stereotypes, that daughters would prefer a formal dance while boys would prefer baseball games.  I get that.  Sure, but are there really that many girls who prefer baseball games, or that many boys who prefer a formal dance?