Actually they all return to each individual in expressing something as you say. that indeed there are very many illegal examples made, such as laundering money obtained from illegal. banknotes produced from illegal, transacted to the crypto market to become bitcoin. so that later it will be done for all forms of transactions, the possibility of illegal actions will be difficult to trace where they came from. everything can happen, but if our intention not to do illegal will certainly not be done. because there are still many forms that can be done legally.