some schools are stricter than others (obviously) my belief is that doha college is generally not strict (i think generally a number 3 was the limit but i am sure there are people with longer it is just a regulation written on a handbook) now others will be worse american school would be laid bak too (can wear own clothes; but its american system) but many other are significantly stricter, seperate gender classes, im not sure which are segregated but i know QIS and Qatar Academy are from 13+

good luck ........