Why is it less perilous to introduce new foods to Phineus at snack time rather than at breakfast or lunch?

Introducing new foods to Phineus at snack time rather than during breakfast or lunch is advantageous because rejecting food at snack time could be less detrimental to his overall nutritional health. Snack times generally involve smaller portions and may not provide the same level of nutritional need as meals, allowing more flexibility for experimentation without major consequences.

Focusing on snack time allows for a lower-stakes environment where Phineus can be exposed to new foods without the pressure of missing out on a significantly nutritious meal. Since meals are generally expected to meet a bulk of daily dietary requirements, introducing new foods during these times can create anxiety or resistance if he is already in need of sustenance or if he has a pre-existing aversion to new foods. Thus, snack time serves as an opportunity for Phineus to explore and accept new foods in a relaxed manner, contributing positively to his eating habits over time.