Bitcoin is the one that lead to the existence of the term cryptocurrency. Now there were more and more digital currencies with advanced features in terms of security, transaction access and so on, still they were not able to compete with the bitcoin. This confirms that bitcoin will never be outdated by any other cryptocurrency.
There are lots of new coins built with modern technology and new technology that surpass Bitcoin but Bitcoin will never be outdated. Bitcoin still has the special features that other coin can not get and that is why Bitcoin is still growing as strong today.
It can be banned but not out dated. Since bitcoin has no controls and there price always fluctuate. Its highly volatile so people like to invest with it and believe in cryptocurrency more than Gold and silver.