Einstein said: "Everything should be made as simple as possible, but not simpler."
I can't argue for a moment with the line Genghis quotes from East. We need explanations at a number of different levels, provided they don't mislead. But it is important to be able to peel back the layers of the onion when the need for a more sophisticated model arises. That's the nature of physics.
For me what's special about lift, and what helps aeroplanes fly, is not
that air is deflected by an aerofoil, but rather what a
huge amount is deflected. And an explanation that doesn't approach that aspect doesn't fully satisfy my curiosity as to why it took more than two centuries after Newton before man mastered flight.
Checkboard
Using Bernoulli's theorem
is the way that the amount of lift from a wing is calculated. Consult any text that offers a quantitative model.
Keith
I too am thoroughly stumped by your question "so what holds up the low pressure area?".
What do you tell your students as an answer?