According to me it will be a bad decision to convert all bitcoins into money. The value of bitcoins is highly volatile and uncertain so there is no surity when bitcoin price will rise and you will be in loss after reserving money in your bank accounts . The second reason it is a bad idea is because all countries does not consider bitcoin as a legal accomodity so they might question the transaction of such huge amount of money into your bank account and may not legalize it . So converting all your money into bitcoins is not a good idea.