The model you are longing for is either extremely simple and already near completion or completely unattainable.
The simple version: Alibaba/Express and Amazon buys or kills most online competition etc, the remaining behemoths split the different markets and manage all the delivery. Only them know your personal info and every smaller shops need to go through them. Kinda the same way most of the world need to get with Apple/Google for things happening on mobile phone.
That situation could be completed in 5 years I wouldn't be surprised.
The crazy alternative: we all cooperate to have a common protocol to handle personal info, banks and shipment companies all agree to have standardized public APIs that are robust enough to last and be used more than six months. I don't think my grand children would see that happen.