1, bitcoin has no value, just a piece of junk number. it has no value like currency or gold, people buy it just for speculation.
2, bitcoin is unsafe and easily be stolen. If someone buy some coins for invest, it may disappear or hacked.
3,Gov will ban it, because it is anonymous and can not be controlled. People can use btc buy illegal goods like drugs and guns, and may not pay tax. Or terrorists will use btc to fund terrorism activities.
4, Btc system is unsafe too, 51% attack will destroy it.
5, people does not need bitcoin, they can use dollars as well.
So I think btc will soon die.
1. It has a value as long as I get something for it, which is the case right now. "Currency" like USD/EUR etc. are the same in that regard.
2. Money in the bank already has been "stolen" and it's up to the bank if they actually give it back to you or not. Saying bitcoin is unsafe without any kind of proof is kinda weird, and there is no such proof. Systems might be unsafe, but bitcoin is not. In fact it is a lot more save than any bank account. Bitcoin hasn't ever been "hacked", systems have. Some people can't handle responsibility but there are more than enough who can.
3. Most governments banned most drugs and they still didn't "die". So this being an argument for "Why btc will die" is just not true.
4. This is an issue which might lead to BTC being replaced, but it's the only one in your post.
5. I cannot buy a drink at the local pub with dollars, but I sure can do so with BTC.