Why do you think a public ledger will be the medium for illegal transactions? How exactly do you plan on converting fiat to btc and then paying for transaction

Why do you think a public ledger will be the medium for illegal transactions? How exactly do you plan on converting fiat to btc and then paying for transactions? Every step of the way is going to be on the. public. ledger. Forever. Linked to each step along the way. C'mon. BTC is for people who don't want to be at the whim of banks or paypal. Or it was anyways, until the fees became too high and the transaction times became too long. The serious use is with other coins like ETH (powering smart contracts, dApps) and BCH (hard fork of bitcoin from August that doesn't have BTC's current issues). Or altcoins. Raiblocks and XRP have extremely quick confirmation times. All of which have a public ledger by the way. If you want to do illegal activities, you'd probably want to use Monero or NAV, but first you'd have to prove either are truly private.