That's up to you. They are welcome to stay with you for the entire service.
During the 10:00 AM service, there is a nursery (at the end of the hall)m for children aged two and under, and there is Children's Church for children aged two and older.
Children go to Children's Church (down the hallway) just before the church service begins (younger ones should be escorted by parents). Then, before communion, the children are returned to the church service by their Children's Church school teachers.