When I envision the world without bitcoins, the society will spend more cost in electronic payments and lots of money are being lost in the economy.
All things on this world will be dependent on barter or basic or tradition process where the local money will be use as a meduim for all means of transaction.
The best alternative is to invest by buying a bitcoin currency. these bitcoin currencies are not affected by politics or government. Another advantage of this currency is to protect from continuous price increases.