I don't have a problem drawing feet. Though I'm not as good at drawing them as I am with hands. D:
I feel a lot of webcomics suffer from too many medium and close-up shots and not enough wide/establishing shots, which is why it's hard to find a lot of feet/legs in some comics. Drives me nuts, personally, because it makes for very stale cinematography. Vary up your shots, please don't tell an entire story in close-ups! D: