Then why not just have egld doing the same thing Mex etc does? Wouldn't that increase useage of the egld token and increase utility vs adding another version ie Mex?

Did you even read the whitepaper and the reasoning behind every Elrond utility token?

Then you don't understand how the blockchain works and its inner workings/architecture. EGLD is the gas token.

I did but I'm not seeing it, and maybe I need a sunbed down version but outside of the crypto bubble it's not the simplest for less technical people to understand and therefore invest in, so maybe it's not for me.