Well i myself was a teacher and I totally advice you to work here for at least a couple of years.
There are no restrictions at all for moving around here. If you are a beach lover, you can swim wearing whatever you want
You will find lots of expats here. Check internations.org and meetup.com for weekly activities where you can meet new friends.
As for tutoring, you can easily double your salary by providing after school lessons. I can show you later how to advertize and get students.
Food industry is Yummy-ful !
As Mark said, the only issue here is your living place. Well it is safe but too crowded with construction workers and similars. Try getting a place in in salmiya/fintas/mahboula...that's where most westeners live.
Again Khaitan is safe, it's just well crowded
If you have further questions lemme know