Welcome to mandarin.
How many ways can you write the same sound?
The answer is yes.
« Shī Shì shí shī shǐ »
Shíshì shīshì Shī Shì, shì shī, shì shí shí shī.
Shì shíshí shì shì shì shī.
Shí shí, shì shí shī shì shì.
Shì shí, shì Shī Shì shì shì.
Shì shì shì shí shī, shì shǐ shì, shǐ shì shí shī shì shì.
Shì shí shì shí shī shī, shì shí shì.
Shíshì shī, Shì shǐ shì shì shí shì.
Shíshì shì, Shì shǐ shì shí shì shí shī.
Shí shí, shǐ shí shì shí shī shī, shí shí shí shī shī.
Shì shì shì shì.
I mean, that's just because Europeans (and places Europeans colonized) are not used to tonal languages. I started leaning mandarin recently, and while the tones take some getting used to, they are quite clear to differentiate