On the part of fast and easy transaction, cash payment is the fastest in such realm. When goods are purchased directly in front of you, making transfer from you native bank account is not even fast to compare with paying directly with the cash in your pocket. Bitcoin's form of transaction is made easy because of it is not bound to a certain region or country.
Bitcoin is made to be an alternative, not a replacement, and it is yet only El Salvador that is using Bitcoin as a means of payment, as they do not have their own currency.
This is not comparable because cash payments have a general payment structure made by most people and maybe this has mastered the payment pattern that has been so long.
Now there are some products that might offer fast payments such as credit cards, debit or qris but for cross -border payments are not proportional to the accuracy or speed with transactions using Bitcoin.
Bitcoin was created not to match anything but as an alternative, but no one knows how this concept can be imitated in terms of future payments.
Although currently it is not possible for most countries to implement bitcoin as a legal transaction tool because each country has regulations regarding transactions.