being surprised that people scam is like being surprised a lion killed you while you walked towards him.

just to be clear: there is a lot of "evil" and "idiots" out there and believe it or not, but making money with scams and illegal activities is mostly easier than by a legit business.

I don't understand it either, i am not such a person but there are many. much more than you think. politicians for example. they are 98% scammers. they promise things they never deliver. but you didn't put your 200 dollars into it, so it doesn't hurt you directly (if not more indirectly)

what is their market? if you mean that it can be accepted at a shop?
i think as long as you charge all the taxes the government needs to barely survive, i think yes. sure the gov. does not take tax payments in Crypto though

If you plug it in at work and get free electricity, definitely yes
I think its not worth it, unless you do it really sohisticated and you are in the game since a while

I don't want government controlled profit making banks telling to whom to transfer funds
Banks NEVER servce customers but just themselves. Their profits come out of our pockets

No not at all. We are all here because we don't want FIAT. Making a FIAT crypto makes no sense at all

I am not sure what I think about stablecoins eventhough the project looks ok

I think the best thing of Bitcoin is its branding. so clear no!
Rebranding will not remove some of the negativity about it

the same way they can steal money from your account. hacking the account is unlikely (in case of btc, hacking the blockchain, as of now impossible) but they can put a gun on your head and force you to hand out the pin. i think that also applies for private keys.

the difference is, with the private keys they can take all your funds (that are on this particular key) where with the debit card pin, there is a limit.

so to answer, yes. very easily.

best prevention is that noone knows whos are your addresses and how rich you are. Not looking like a target is the best you can do to never become one

I think this can happen in the near future, but bitcoin will survive and maybe in a mid term overtake ETH again.

but legends never die and since bitcoin compared to human beings has no heart that stops beating, i think the legend Bitcoin will not die. so if its not dying, its going to appreciate in value. i don't see anything in between.

I said it 1 year back and I say it now, bitcoin 2018 = 50k USD

Volatility is OK but the amount that Bitcoin has is definitely an issue if it shall be adapted as a currency.

IBM i think has released a pilot with DHL on hyperledger

No it cannot. As much as I believe in it, bitcoin can not become the one and only main currency in the world. for multiple reasons that i don't even know where to start mentioning them.

the ones that create businesses around it. Maybe payment gateway producers, etc.
Of course also traders and investors that are open to new currenceis.

depends on how long it is