This is the main reason why Bitcoin doesn't have it, as implementing this protection would require a fork of the legacy Bitcoin ledger itself which would cause numerous technological issues with Bitcoin - compatible wallets and applications. (captainaltcoin.com)
It makes no sense to burden the distributed Bitcoin ledger with every single small transaction. (ccinews.net)
Each BCH transaction is tagged with a mark which confirms that the transaction was created specifically for the BCH ledger and not the legacy Bitcoin ledger. (captainaltcoin.com)