Koreans say 괜찮아(요) in so many situations

I am sorry ☞ That's

ok
미안해요 : 괜찮아요
What about this? ☞ It is ok/ not bad
이것은 어때? : 괜찮아
How was the food? ☞ It was ok/ It was not bad
음식은 어땠어? : 괜찮았어
Are u ok? ☞ Yes, I am ok/ I am fine
너 괜찮냐? : 어 괜찮아
Do u think she is pretty? ☞ Yes, She is ..
너 생각에 그 여자가 이쁜것 같아? : 어 괜찮아
It is not sunny 🌞 but it is ok to go hiking
해가 안떴네 날씨가 흐려 그렇지만 등산하기에는 괜찮아
Don't worry everythig will be fine
걱정하지마 모든게 다 괜찮을 거야
I failed the exam but it is ok I can try it again
나 시험에 불합격했어 하지만 괜찮아 다시 하면 돼
She is a good person
그녀는 괜찮은 사람이야
He is nice
그는 괜찮아
This house is quite nice
이 집 참 괜찮다
Can I eat your 🍕 pizza ? Yes, you can
내가 네 피자 먹어요 돼? 어 괜찮아