Did you ever stop to ponder the wonderful job your tongue does?
As you chew, it pushes whole food to your teeth, and then it guides half-chewed bits for another go-'round.
It's all unconscious! We do it and don't even think about it. Is this learned? Is this instinct? Was this the big deal with the shift to solid food 25 years ago? Is this why my parents were so keen on shifting me to steamed carrots? So when I was in grad school I wouldn't maim my tongue every time I wanted a grilled cheese sandwich?