The other option is to prepay tarrifs during the purchase of an item. Fedex and DHL usually offer this service which includes epedited customs clearance.
Is it really? It sounds like you're implying it's some kind of woeful ignorance, but I say it's perfectly reasonable:
1. Each US state is already in a open-borders zero-tariff framework with all other states, which covers a very large portion of what people purchase.
2. Until recently, most individual consumers didn't need to think about tariffs on international goods, since most purchases were <$800 and covered by the de minimis rule. (Which AFAICT was in place for ~80 years.)
When Amazon and all first came out they didn't charge sales taxes and states were pretty unhappy because largely nobody was paying the sales taxes they were supposed to on their tax returns.
* Most Americans have no other encounters with "use taxes" in their day-to-day lives.
* It's natural to assume the vendor (or new Internet Computer Thing) is continuing to handle it, especially when that's how all their regular purchases work.
* The tax functionally didn't exist for many decades, at least when the retailer had no in-state presence.
> states [...] tax returns
22.7% of Americans in states without income tax: "The what?" :p
[0] https://en.wikipedia.org/wiki/Fundamental_attribution_error