English is a terribly inconsistent language, btw. If you know others, you realize there's a big gap between pronunciation and the word based on historical reasons. People who learn struggle a lot to communicate effectively due to these inconsistencies. Maybe some of them can't go play with their friends too.

If we used something else instead of english as the Lingua Franca, some say lobjan, maybe we could be more effective. Let's all switch.

I hope the point is clear. It's not all about the most efficient from your perspective but cultural, historical, pragmatic reasons, including that languages and ways of communicating mutate by themselves instead of being pushed top down.