This https://www.shouselaw.com/ca/defense/penal-code/459/ says that just entering a building with the intent to commit a crime counts as burglary even if no force was required.
> If you break into someone's home, at night, while it's occupied, the law presumes you intended to do violence.
Well yes. But I explicitly said "no one's present". And it usually happens during the day where I live, because that's when people work.
From https://www.law.cornell.edu/wex/burglary
Typically this means you've broken into a domicile (sometimes lesser charges of Burglary exist for non-domicile, eg a vacant commercial building). If you break into someone's home, at night, while it's occupied, the law presumes you intended to do violence.
This presumption is usually correct!