What will crypto-currencies of the future be like? What will we be able to achieve using these crypto-currencies?

When do you think crypto-currencies will become widespread? I've heard a lot of people predict that in the future there will be government issued crypto-currencies but would that not defeat the whole point of them? The fact that crypto-currencies are decentralized is exactly what attracts me to them the most.

I've heard of a crypto-currency which provides a basic income for everyone but why does it have to be basic? Why can't it provide a good income for everyone? Also, will prices rise if everyone was earning a good amount of money? I am only 12 and have no knowledge of the economy but I am interested in learning about crypto-currencies.

I am new to crypto-currencies but want to share an idea with you. Would it be possible to create a cryto-currency with an inbuilt income for everyone who uses it? That way no matter what people will always have enough for the bare necessities of life.  People will still be able to increase their 'income' (for lack of a better word) but they've got the inbuilt income to fall back on.