We see: ฿ is the favorite but it is already in ust by thailand
does someone know, if its "allowed" to use?
If not, there will be Ƀ the next favorite
And the $ is used only in the USA...
The general dollar sign $ is used in so many common situations and countries that people dealing with international transactions would by habit verify which currency is it referring to. However, using a symbol currently only used by a specific currency would create a potential for errors if not outright frauds. Just imagine if you had a contract for ฿100.00 thinking it was 100 bitcoin but the other person pays you 100 baht instead.