yes
Yes it is. You should never lock a child outside. Ever.
No, yelling at your children is not against the law.
No, it is not against the law to own lock picks in Los Angeles.
On the contrary, many jurisdictions jail delinquent obligors.
Yes, you may be classififed as peadophile if you do.
Not in Australia
Village priests got married and had children, which is against the church law.
It could depend on the reasons and circumstances of the situation, but not that I am aware of.
Because it's against the law.
Yes it is against the law for a child under the age of 18 to smoke. If the activity is acted upon under your care it is your responsibility for their mishap.
There is no specific law as of such that says you can renounce your parents. Since it is biological parents or children cannot renounce each other. But still they can go to law if something is against the law and the law decides.
If it isn't, it should be. At the very least, it should constitute neglect, since, by definition, locking a child in their room, means that they are unsupervised by an adult. You cannot supervise anyone without being in the same room or having visual contact.