why shouldnt anyone have his own money, is the question now
definition of money is clear. it has certain attributes such as being a medium of exchange, a unit of account, a store of value and sometimes, a standard of deferred payment.[1] but the main attribute is anything that is
widely used and accepted to do all those things above.
if everyone starting creating their own money there will be chaos. imagine you bought a printer, designed a currency and printed it on special papers. can you go to the grocery store and buy stuff with it? you can try to convince someone else to accept it then someone else but after a lot of effort you won't be able to get many to do it. so what you have just printed can not be money.
not to mention that because you were not familiar with the process of printing money, had no access to special expensive printers government uses to print money, and also didn't have the special paper for money and a lot of other factors your money can easily be faked. i can also print the same thing at my home which means your money has no value either.
[1]
https://en.wikipedia.org/wiki/Moneywhat makes the bitcoinsect so special that it can have a currency and others not, and why should it be treated favourable regarding market attention, listening and indexing?
one word: adoption!
people chose bitcoin to be a currency, they saw others, weren't impressed so they decided to use altcoins for pump and dumps only. you can't force people to what they don't want to do.