NWN2 does not seem to acknowledge the native subtype of planetouched characters. Consequently they do not receive simple and martial weapon proficiencies for free, and do not receive immunity to spells such as charm person. They will also not be affected by turn undead attempts against outsiders.
3.5e Comparison[]
Native is a subtype of the outsider creature type.
A subtype applied only to outsiders. These creatures have mortal ancestors or a strong connection to the Material Plane and can be raised, reincarnated, or resurrected just as other living creatures can be. Creatures with this subtype are native to the Material Plane (hence the subtype's name).
Unlike true outsiders, native outsiders need to eat and sleep.