Kabutos team was 3 males

traditional ninja teams are mainly male, fact is there are less females

also we have NO, i repeat NO evidence that Obito was even in Kakashis team

i'll repeat it in bold

NO, i repeat NO evidence that Obito was even in Kakashis team

for all we know Obito could have been his girlfriend who was killed by Orochimaru (which is just speculation not a fact)

and for those that think Itachi is involved thats also just speculation, Orochimaru was the first one to mention that Kakashi 'acquired' the sharigan so obviously he knows something about it