You can have many choices, they can be Qlink, GoNetwork, and ZILLIQA among many others. They are very promising programs that have very useful commands.

I'd vote for Major exchange hack since it is the fundamental function of Bitcoin in the first place. Perhaps more currencies will join the trades and make it bigger.

It is never too late to invest in Bitcoin. There is always a chance when the prices can be beneficial for you and you can make up with the time.

Bitcoins can be risky in their own way and are volatile. You need to be careful on how much you invest, around 30% would be good enough.

Bitcoin is legal anywhere. As long as you still can purchase and process your Bitcoin for investment or traded, you can still consider it legal and unregulated.

There are multiple wallets you can use for Bitcoin. However, it is better to keep an offline wallet in order for you to secure your Bitcoin or stash better and easier.

In the current perspective, there is a low possibility that there wouldn’t be actual money. Although we already have cryptocurrency, this type of money is still not accessible to the masses yet. Establishing that type of scenario will be chaotic for now.

The sheer amount of investors that bitcoin has is what makes it less likely to fall right away, if it does it would be because of the gradual decrease of it's investors.

Hard to say, If you think that bitcoins will continue to grow in price value and be able to grow more popular, then you should definitely invest, otherwise don’t.