I got to agree, its just being clinically safe.After going through the item #18 of Shri Prasad, I was seeing
the serial 'Bhagyalakshmi' in Vijay TV where I observed that in
a birthday party after cake cutting ,one big piece from that is exchanged among members ,each one biting out a bit from it and enjoying it. Even in public places like a restaurant I have seen people sharing food item from the same bowl .The
children also follow similar practice. Soucham is important
and best learned at home .Whatever good practices we want to pass on to our youngsters should be followed by parents at home. Charity begins at home.
Sharing of saliva isn't hygienic.
If we look at it from a medical point of view, it isn't a safe practice.
Saliva can transmit many disease ranging from dental infections to Covid 19.