In re Luis R. 

Delinquency petition was filed in 2007, when Respondent had reached age 21, for events alleged to have occurred in 2000, when Respondent was under age 17. Circuit court had personal and subject matter jurisdiction. The issue raised by Respondent, that because he had reached age 21 he was no longer subject to petition brought under the Juvenile Court Act, addressed a potentially fatal pleading defect rather than a jurisdictional question. (KILBRIDE, GARMAN, KARMEIER, and THEIS, concurring; FREEMAN and BURKE, dissenting.)