Another reason that girls and boys tend to side with their own gender is due to differences in choices and play styles. In a comparison of pre school aged children, boys tend to play more roughly than girls. Also, children tend to play make believe and even in this respect boys have a more aggressive approach than girls. Girls fantasy play deals with domestication while boys fantasy play includes aggression and supernatural. Not only do differences occur in the content of play, but there is also a discrepancy between the languages of the two.
Boys tend to be concerned with less detail when playing.
There games do not include a specific set of rules and even less talking. Girls on the other hand, tend to have games that involve a lot of talking and especially a set of rules. For this reason girls do not tend to play with boys because they have different styles of playing. Due to gender differences, females learn through identification that sports are not a feminine ideal. When examining the gender schema theory, we must include the statement that if a certain attribute is not reinforced to a child, that attribution will not be learned.