[verdverm]

Different languages and cultures. When you spend a lifetime building reading clues, throwing them out the window makes it harder for people. The languages you mention also have delineation methods that involve more than simple punctuation marks.

[monkey_monkey]

What are the delineation methods in Mandarin and Cantonese and Hindi?

[verdverm]

I suspect the journey to learn more on your own will inform you better than I can here on HN. Like english, they have changed over time, more often than not to include more delimiters.