By “easier” I meant less of a bureaucratic nightmare. Whether the answer is yes or no, it should be easy and fast to get it. Perhaps I should have said “apply” for an extension.
In any case, I don’t know why we should care what other countries do, unless they find something that works really well and might work here...
As someone who has actually issued visas, I have no idea what you mean by "bureaucratic nightmare." When vistors are issued their visas overseas to enter the US, they understand the length of time the visa is valid for. They must prove that they have a valid reason to extend their stay in the US beyond the authorized period. This country is no different than any other when it comes to the extension of a visa. Can you identify any other country that makes it easier and faster?
In any case, I don’t know why we should care what other countries do, unless they find something that works really well and might work here
Then you don't understand the concept of reciprocity. American citizens deserve equal treatment from other countries, i.e., the same treatment we provide their citizens. To demand less puts our citizens at risk in many ways.
Extend Your Stay
If you want to extend your stay in the United States, you must file a request with U.S. Citizenship and Immigration Services (USCIS) on the Form I-539, Application to Extend/Change Nonimmigrant Status before your authorized stay expires. If you remain in the United States longer than authorized, you may be barred from returning and/or you may be removed (deported) from the United States. Check the date in the lower right-hand corner of your Form I-94, Arrival-Departure Record, to determine the date your authorized stay expires. We recommend that you apply to extend your stay at least 45 days before your authorized stay expires.
You may apply to extend your stay if:
You were lawfully admitted into the United States with a nonimmigrant visa
Your nonimmigrant visa status remains valid
You have not committed any crimes that make you ineligible for a visa
You have not violated the conditions of your admission
Your passport is valid and will remain valid for the duration of your stay
You may not apply to extend your stay if you were admitted to the United States in the following categories:
Visa Waiver Program
Crew member (D nonimmigrant visa)
In transit through the United States (C nonimmigrant visa)
In transit through the United States without a visa (TWOV)
Fiancé of a U.S. citizen or dependent of a fiancé (K nonimmigrant visa)
Informant (and accompanying family) on terrorism or organized crime (S nonimmigrant visa)