I believe there is always a platform for peer to peer transaction for bitcoin between user at each country, but it will still goes under bank transaction unless you make a face to face deal by cash.

as a normal citizen i won't mind paying tax for income like this , just hope the government mafia don't end up sucking all the profit.

For me i will choose to hold my Bitcoin , the price drop maybe just because some big shark want to join the BTC market so they create this chaos to buy from small fish like us.