grrrr language?

I was jumping through some blogs ans most of them were written in english, than I got a baaad feeling, why do I forbid other people, with a different language to read my blog, is it kind of racism, or just the way we think.
Why do we need to write in our native language when we are able to write in a language almost everyone understands?
that made me think a bit.
 so maybe I will try  to write my next posts in english, even if i´m going to embarras myself with not speaking so good, but I will try my best, and i guess it will be a good practice for me.
So thumbs up for an english blog!