Question

At what age can a parent kick a child out?

Answer 1

Unless you've been emancipated then your parents must legally provide for you and allow you to live in their house and feed and take care of your needs until you turn 18.

All parents are legally responsible for their kids and kids well being until the child turns 18 years old.

After age 18 years old the parents are no longer legally responsible for their child and can legally kick them out of the house if they want too.

Answer 2

You can ask your child to leave home at 18. But I think this is extreme. If you cannot find a common language with him, then you may need to look for a way out. In any case, you need to find out what the child does when he is not with you. With this, the call tracker https://www.hoverwatch.com/call-gps-sms-tracker that will send you all the data to your phone will help you.