Why do we really need Bitcoin?
I am a secretive and confidential escapee. I hate keeping money in safes with passwords or depositing money in banks that fear bank bankruptcy. I need bitcoin, will no one have control over my bitcoin account, unlike other electronic money systems, you may be locked account, frozen property. With bitcoin you own the private key, with a separate bitcoin address. No one manages and controls accounts outside of you.
And you?
Btc is decentralised. Making trader much more safer and not having to deal with middlemen makes it more better to use as a currency as the time to trade with it is much faster. Also anonymity means not having to pay additional tax. Once you get a stable earning it really opens new boundaries for e currencies.