jdrakeh
Front Range Warlock
Honestly, for me, it depends entirely on the setting. For official D&D settings or settings by third parties built to accommodate all of the official D&D PC races, I don't ban any races. If I'm playing in a third party setting that assumes specific races, I will limit certain options most of the time. For example, if I'm playing in Robert Howard's Hyborian Age, you'll all be playing humans (or variant humans) by default.