Maybe it's more about how we used to reject food like this as toddlers, and how people take it as nostalgic.
To me it's trying to feed babies...and more recently, old people that begin to act like babes too
*chew*Nn.*turn*Here, Tewi-chan.Say "Aahh—".Ah!Hime-chan, please use your spoon.*chew*EienteiRight now,Greetings. I am Reisen Udongein Inaba.the children are having their mealtime.