At least with Korean and Japanese, they are highly formal as they have different conjugations depending on the level of the person you're speaking to.
With Korean, spoken language among roughly same-age friends is informal, of course. But if someone is older, then there's a different ending, unless you know them well enough to speak in informal language.
If you're speaking to your boss there's a different level of formality, and people like your grandparents get honorifics which are also conjugated, but alongside with formality.
It also reinforces social pressures of obeying your boss/elders, which stem from Korea's roots in Confucianism/Neo-Confuncianism.
It's no wonder people like to use English sometimes.
With Korean, spoken language among roughly same-age friends is informal, of course. But if someone is older, then there's a different ending, unless you know them well enough to speak in informal language.
If you're speaking to your boss there's a different level of formality, and people like your grandparents get honorifics which are also conjugated, but alongside with formality.
It also reinforces social pressures of obeying your boss/elders, which stem from Korea's roots in Confucianism/Neo-Confuncianism.
It's no wonder people like to use English sometimes.