As we notice that almost all the altcoins follow the price of bitcoin . I'm just wondering when they will become independent and don't follow the bitcoin price?
I think this is very difficult for the Altcoins. Unless there is a strong enough Altcoins to beat Bitcoin and lead the coinmarketcap table. Probably not likely this will happen and the Altcoins will depend on Bitcoin.
Indeed it looks difficult if altcoin is not influenced by bitcoin, the main coin which until now still remains the parent of the coin. Only a creative development team might be able to change altcoin at a better price, the community might also be able to change it without seeing bitcoin.