Waiting Six Hours

There is a dispute among the Rishonim related to the Halacha of waiting six hours after eating meat, before eating dairy.
The consensus opinion is to wait six hours even though other authorities like Tosfot, say it is sufficient to wait from one meal to the next, even if that is far less than six hours.
One opinion is learned from the Torah regarding the quails. The wrath of G-d came down when הבשר עודנו בין השיניים, when the meat was still stuck between their teeth.
This led to the opinion that it takes six hours for meat to no longer remain between the teeth.
The second opinion was that it takes six hours for the food to be digested in the stomach.
Where is there a practical difference between the two opinions? It is regarding a young mother who chews the meat for her baby, so that it will be easier for the baby to eat it.
According to the opinion that the food is between the teeth, the mother would need to wait six hours before eating dairy. But according to the opinion that it relates to food digestion, she would not have to wait at all.
I believe we tend to be strict in this matter and all wait six hours.
It is also interesting to note that even if we follow the opinion of Tosfot, we can say that six hours is the average amount of time between meals.