State/local police/court probably do not care about immigration laws. They only take care of your case in criminal process. They don't automatically
alert USCIS. They don't even have to report the case to FBI database and even reported FBI does not enforce immigration law either. So
unless the offense is very serious immigration authorities do not kick in until when the applicants apply for some immigration benefits during
which crminal history will get attention from USCIS. This typically happenes when PRs applies for citzenship, GC reneal, or entry into USA froma trip
abroad. So the fact you are not deported does not mean your offense is not deportable. To find out wther or not your offense is deportable,
consult with an immigration lawer who is expiriencec in both immigration law and crminal law especially juvinile crminal laws. You better
find a lawyer who handled the similar or same cases before.
So don't take it lightly that you are fine. But don't be persimistic either because you may be fine. Just consult some lawyers.