Vat growth process apparently matures them to 16, so set that as minimum age

src/Mods/Catmod/events/reRecruit/runawayCat.js

@@ -65,7 +65,7 @@ App.Events.recRunawayCat = class recRunawayCat extends App.Events.BaseEvent {
 		}
 
 		function makeSlave() {
-			const slave = GenerateNewSlave(null, {maxAge: 22, race: "catgirl"});
+			const slave = GenerateNewSlave(null, {minAge: 16, maxAge: 22, race: "catgirl"});
 			slave.face = random(25, 75);
 			slave.origin = "$He was bioengineered by a rival arcology owner. After being mistreated, $he escaped and came to you for protection.";
 			slave.slaveName = setup.catSlaveNames.random();