There were many lingua francas of which French was supposedly the first global lingua franca. That changed and it became English (from what I understand). We will probably see another language become the lingua franca, so my question is: should it be English? Are there better candidates out there? Why / why not?
The grammar is fairly simple, but spelling is a total train wreck and an unparalleled nightmare of inconsistencies and convoluted rules. As long as you don’t have to read or write anything, there’s not much to cry about.