before in minecraft for wii u xbox 360 ps3 new 3ds psvita and the old versions of the ps4 xbox one and nintendo switch you could spawn baby mobs on the adults belly but in bedrock you can no longer do it and here are the following mobs that you can no longer spawn on the adults belly

 

pig

sheep

cow

chicken

mooshroom

horse

donkey

mule

skeleton horse

zombie horse

rabbit

 llama

fox

panda

wolf

dogs

cats

ocelot

goat

villager

hoglin

piglin

zombified piglin

zoglin

squid

glow squid

axolotl

polar bear

zombie

husk

zombie villager

drowned

dolphin

turtle

strider

and bee

 

so please fix this bug and update all versions of minecraft