Of course btc can help because when you work abroad sending money to your family is a big problem and btc can solve it easily.

If many countries ban btc than people would lose interest making the fall in btc price and cashing it out would be very hard,

The banks has their roots in the world since centuries and to eliminate them all is a hard work, very hard but not impossible.

if there would be a bitcoin bank wouldn`t it be a contradiction to the bitcoin`s main mission and vision.?

I also have invested and bought btc with money and believe me I have not any regret.

So many friends of mine has invested their 200$ and made 1000$ from it within a month or two so I would say invest it.

In the eve of new year and christmas the demand has fallen and if it will rise again the btc will rise as well.