FLOTUS at the Flood

Why in the world would the current FLOTUS wear stiletto heels to make an appearance at flood-torn Houston? I know I'm fashion-challenged and that I have only worn heels that high while sitting, but for the love of all that is holy, why isn't she wearing boots of some sort or Birkies or Crocs? At least Melania hasn't committed a faux pas of elitism by tagging her designer clothing. That, children, would have been unforgivable.