Paper money will decrease, but will not disappear completely. Many people like to feel real money in their hands and keep them in a safe because they do not trust the Internet any more.
These people are delusional. We already have an advanced society, it is us, the Millennials. The modern technology, we already have that as well. Is is accelerating the mass adoption process? Kind of, but not really. Only those that are interested in bitcoins are using bitcoins right now.
Paper money will decrease? Oh my, have you guys ever heard of inflation? The government is making paper money out of thin air. You want to get a loan, the government would just swoosh their magic wand and Voila! there you go, tons of money from thin air. Paper money is continuously printed out today so you'd see that your currency is constantly devaluing.
gives transparency and privacy to us people, with bitcoin they cannot control it and price will increase..
Also, it's not only currency but a big investment as well.