That was the best way to buy bitcoins back in the day, the problem right now is there are only a few people who are trusted to do those tasks which can be tricky because right now there are lots of transactions to process which we really need to have exchanges to be able to take the job conveniently without any difficulties. more likely what we need today is Decentralized exchanges instead of CEX that keep updating their rules because of the SEC involvement. But as long as we can freely buy bitcoins and keep them securely, we are still good and can make things easier when it comes to withdrawing them since we have a variety of choices to trade.