So why start with halflings? Rather than a less popular race that takes a very similar space (gnomes) or even a race that's only slightly more popular despite having been showered with love from writers for decades (dwarfs)? Why single out halflings?
Been asked this a couple of times. Because the thread is about halflings? I mean, focusing on halflings IS the point of the thread. We could make the same points about the lack of lore for gnomes as well, really. It's not like gnomes are swimming in information either. And tieflings and dragonborn are both largely absent. But, we're talking about halflings.
And, again, I'd have zero problem with dropping any race from the PHB that is rarely played. Whether it's 5.9% or 4.something percent from a later poll (funny how that averages out to about 5%, but, there are those who INSIST on keeping that .9 percent but refuse to acknowledge the other, more recent numbers, almost like some folks might just possibly be arguing in bad faith.), halflings are not a very commonly played race and never have been. If dwarves are in the same boat, then boot them out too.
The PHB should reflect what is actually being played, not what people wish were played. Now, I don't have access to the numbers, so, I cannot, obviously, state categorically which races should make the cut. But, if the options in the PHB were similar to the class options in popularity, then no race would be head and shoulders more popular. We should at least make the attempt to make the PHB relevant to most tables.
I have a sneaking suspicion that it really isn't.