With constant speculation about the value of bitcoin, China claiming to ban exchanges of bitcoin, and some banks trying to create their own blockchains for their countries, What will happen to bitcoin if this become true? Will it be still used ? will it not be worthy anymore ?
It's possible but highly unlikely because there are many people who believe bitcoin's value will still rise even if there are hindrances along the way because we observe it in the past. Bitcoin's value always drop drastically in the past but eventually recovers and its not that popular yet. How much more nowadays when some stores are already using it, governments regulating it and make it as payment option for taxes then it would be hard to imagine its value drop down very low or become worthless.
There are other digital currencies as an option but then bitcoin is the most popular, highly used and has the biggest market cap in all digital currencies and there are altcoins to whom developers claim to supersede bitcoin but it did not happen yet. As long as we continue to use and support bitcoin then it would not be worthless.