Can I move out of my parent's house right after I turned 18?

In Oklahoma 18 is the age of majority (adulthood). At that point, you can enter into contracts, such as for an apartment or loan or credit card, etc. An 18 year old can leave his/her parent's home if he/she wishes and the parent nor the police has any power or authority to do anything about it. Additionally, the parent has no obligation to continue to support the child if the child moves out, unless the 18 year old is living with the other parent and continuing in high school. Then the custodial parent has a right to child support for that child until the child graduates from high school or turns 20. If you live on your own, however, no child support is owed or required.