that's only prevention.
If you need more they will raise it to a lot. currently AWS SMS has a really low email sending limit too, like 5mails/s however if you ask for a raise they raise that too something like 100.000mails/s.
[1] only a handful of countries use it, and they don't have English as their primary language: https://en.wikipedia.org/wiki/Decimal_mark#Examples_of_use (row 5)
edit: regarding the disagreement over "only a handful" in a reply: that map is showing the separator between units and fractional part I think, not the thousands/millions/etc grouping separator.
I don't even need to count to figure out that 80+ countries use that system :)
The convention for digit group separators varies but usually seeks to distinguish the delimiter from the decimal mark. Typically, English-speaking countries employ commas as the delimiter—10,000—and other European countries employ periods or spaces: 10.000 or 10 000. Because of the confusion that can result in international documents, the superseded SI/ISO 31-0 standard advocates the use of spaces and the International Bureau of Weights and Measures and International Union of Pure and Applied Chemistry advocate the use of a "thin space" in "groups of three".