ze, zir, hir, zhim

I simply don't understand the use of gender neutral pronouns like this. I don't have anything against it, I've just never seen or heard anyone actually use them

I copied the table below from Wikipedia just in case people have no idea what i'm talking about. I personally think it would be interesting to hear people use these pronouns in day to day conversation.

	Nominative (subject)	Objective (object)	Possessive determiner	Possessive pronoun	Reflexive
Invented pronouns
Ne (pronounced like "me")	Ne laughed	I called nir	Nir eyes gleam	That is nirs	Ne likes nyself
Spivak (old)	E laughed	I called em	Eir eyes gleam	That is eirs	E likes eirself
Spivak (new)[20]	Ey laughed	I called em	Eir eyes gleam	That is eirs	Ey likes emself
Humanist[21]	Hu laughed	I called hum	Hus eyes gleam	That is hus	Hu likes humself
Hy	Hy laughed	I called hym	Hys eyes gleam	That is hys	Hy likes hymself
Ot	Ot laughed	I called ot	Ots eyes gleam	That is ots	Ot likes otself
Yt	Yt laughed	I called yt	Yts eyes gleam	That is yts	Yt likes ytself
Thon[22]	Thon laughed	I called thon	Thons eyes gleam	That is thons	Thon likes thonself
Ve[23]	Ve laughed	I called ver	Vis eyes gleam	That is vis	Ve likes verself
Xe[24]	Xe laughed	I called xem	Xyr eyes gleam	That is xyrs	Xe likes xemself
Ze (or zie or sie) and zir[25]	Ze laughed	I called zir/zem	Zir/Zes eyes gleam	That is zirs/zes	Ze likes zirself
Ze (or zie or sie) and hir[26]	Ze laughed	I called hir	Hir eyes gleam	That is hirs	Ze likes hirself
Ze and mer[27]	Ze laughed	I called mer	Zer eyes gleam	That is zers	Ze likes zemself
Zhe, Zher, Zhim[28]	Zhe laughed	I called zhim	Zher eyes gleam	That is zhers	Zhe likes zhimself
En	En laughed	I called en	Ens eyes gleam	That is ens	En likes enself
Co	Co laughed	I called co	Co's eyes gleam	That is co's	Co likes coself
Phe	Phe laughed	I called Phe	Phe′s eyes gleam	That is Phe′s	Phe likes Phesself
Per(son)	Per laughed	I called per	pers eyes gleam	That is pers	Per likes perself