I'm afraid I feel my level of sympathy would be 100% correlated with how mandatory the heels are for your friend :-/

On aside, I'm also (genuinely, not snarkily) curious to understand the "Naturally" part in front of "wearing high heels". Don't get me wrong - I personally think they're a fabulously attractive if completely impractical article of clothing, but it feels like in many places in the world they are far from the norm/regular/Natural assumption.