If so: mixed schools provide diversity, and a chance to mingle with both genders equally. It helps with maturity and more widespread friendships. Disadvantages, it's been said that grades and overall study quality declines in mixed schools. It's a pretty equal tradeoff.

They learn when they are young to treat each other with respect and consideration.

If not exposed to this environment there are some disadvantages. A male only school has a Homosexuality rate of 63% more than a public school open to all genders with a 14% rating.

The Benefits of Mixed Schools
Some evidence has suggested that boys in mixed schools performed better academically, as they are encouraged not to 'mess around' by their more responsible female classmates - but obviously this is a generalisation and might prove different in specific schools and even in particular classrooms. Some proponents of mixed schools claim these schools have a better atmosphere, since they are neither too 'bitchy', as can occur when a group of girls are working and studying together, not too aggressive, which can occur when boys are exclusively working and studying together.

1 There are less ‘sink’ groups in schools.
2 Different teaching styles are opened up, moving away from didactic methods.
3 There is potentially less negative labelling of students.
4 Teachers have contact with a wide range of students.
5 This form of teaching makes for diagnostic teaching.
6 Troublesome students are ‘diluted’ through the school.
7 A sense of community can be developed in the school (though, it must be said, this is under threat as schools have an open-access policy, moving them away from being neighbourhood and community schools).
8 There is a wide social mix in classrooms.
9 Students’ self-esteem and motivation are promoted.
10 Equality of opportunity and outcome are furthered.
11 Mutual