Something i've observed over my entire Neverwinter Nights career, and which i had never really thought about much until now, is the way some people always play halflings as basically, older children.
Why is this? So many sickly-sweet halflings with speech impediments that try and act 'cute'. It's almost become standard convention, in fact, so much so that there are people out there that clearly believe that this is the norm. Playing childish pranks, naiveté, and such like.
In actuality, halflings are either Feral (Ghostwise), faithful (Stronghearts), or wild rovers (Lightfoots)*
I think of them as normal adventurers, but at half the price. Certainly, never child-like, since a child-like adventurer would just struggle to survive in even the harsher surface environment, let alone the underdark.
* The brackets donote the rule, there are exceptions of course