We’ve reached a point where nobody has the patience for a clunky checkout flow....

https://www.scribd.com/document/1051753410/Why-Milestone-Rewards-Actually-Work-And-Why-Most-Apps-Fail-Them-233966

We’ve reached a point where nobody has the patience for a clunky checkout flow. If an app makes you re-enter your card details or keeps you guessing about when your order arrives, you’re likely deleting it. Today’s users demand speed and transparency