I've read about this "rule" several times on this board. Apparently a few SA's have discussed it with tpf'ers. They definitely adhere to it with their store decoration, but as far as cutomers are concerned they want to push more sales.
But~ later down the line---- waaaay later---- I will follow this rule especially if I get into Chanel......but that's WAAAY later down the line........ (years and years) and maybe by that time I'll be so old and wrinkly nobody will notice my bag............ lmao... j/k