chicken feet and tripe are holdovers from way back...they were always on the table when I had dim sum with Mom and Dad and their families and friends...not so much after they passed...I'll eat them if I'm having dim sum with someone who orders them, but do not order them for myself or my family...
my older sister orders the chicken feet, just in honor of our Mom, and I'm the only one who eats it...
tripe, on the other hand, is a delicious addition to the Chinese beef stew that is served in a claypot...simmered low and long, it is a smooth tender gelatinous marvel that has absorbed the flavors of the stew...my mother made that stew often...with chunks of bone-in beef short-ribs, black mushrooms, potatoes, carrots, onions, star anise, dried bean curds...I occasionally make that stew, but never as good as Mom's