The bug
Baby bees and baby cats never spawn naturally.
Linked issues
Comments 6
Affects 1.21.11. For ease of reproduction, the following commands can be used to detect naturally spawned baby bees and cats without manual observation:
/execute if entity @e[type=minecraft:bee,nbt={Age:-24000}] run say baby bee found
/execute if entity @e[type=minecraft:cat,nbt={Age:-24000}] run say baby cat found@BugTracker_ Those commands won’t work since a baby mob’s Age tag changes every tick. But you can use:
/execute as @e[type=bee] if predicate {condition:entity_properties,entity:this,predicate:{flags:{is_baby:true}}} run say Baby bee
/execute as @e[type=cat] if predicate {condition:entity_properties,entity:this,predicate:{flags:{is_baby:true}}} run say Baby cat
Can confirm for bees in 20w11a. Cats I'm not sure of but I haven't seen a kitten so possibly.