It is very nice of you Why use of instead of for
When an adjective expresses a person's characteristics: kind. Nice, etc
If for is used to express the characteristics of things, such as important necessity, etc
Make sentences with is, you, so, it, nice, of (.)
it is so nice of you
It's very nice of you
Meet, all, nice, you, it is, to
It is nice to meet you all