You can't watch as much TV as you like and you have to go to bed at a fixed time. There are plenty of friends around. You can be sure of getting enough sleep. At first you probably will feel a little strange if you have not been away from home before. You don't have all your own things around you and you may miss your parents.
Some children go home every day after school.
Most people tend to stick around until Friday after classes and then go home till Monday morning. It's up to your parents and you to decide what would suit everyone best. You will probably find after a few weeks that you want to stay most nights. Every afternoon, if you want. If you come from a National School, you will find it a little strange that we play games after lunch and then go back to class.