Most learn English so they can speak, spell and use proper grammar in countries that are English speaking. Just like people in Spain learn Spanish so they can speak, spell and use proper grammar in their country and in countries that are predominately Spanish speaking. To suggest it is racist to learn and apply a language the correct way shows ignorance.
I think that it is the best way to communicate with the people of the world. English is one of the most common language among all the countries of world so this is the best way to communicate with the people.
The English language has adopted words from many other languages- as a result, the vocabulary and rules of grammar are extremely complex (is it you and I, you and me, me and you, I and you, etc) English is one of the harder languages to learn as a second language.
English is important for people of other cultures to learn because it is one of the most widely spoken languages in the world.
You can take online classes that are really helpful. One that really helped me is genkienglish.com. It helps people from other country's and languages learn English. It also has many pages to helps people to learn other languages like genkijapan.com.
English, Spanish, French
English is a combination of many different languages. It has roots in multiple languages. This may be why it is used as an official language in many countries, because it is a language that inorporates the greatest variety of other languages, making it easier for a greater number of people to learn. Even though English grammar is very complex, the vocabulary is based on other languages which some people might have already learned.
English is unique compared to other languages because of its diverse vocabulary, which has been influenced by many different languages over time. Additionally, English has a relatively simple grammar structure compared to other languages, making it easier to learn for some people.
they learn English spanish German and Chinese and polish
because it is made up of many other languages combined and people just decided it should be hard
many Spanish people have learned to speak English, the same as English speaking people have learned to speak Spanish, this goes for almost any one who thinks it is great to learn different languages and it serves them well when travelling to different parts of the world.
So that people can know/learn and compare the differences in any language.
They learn the same types of lessons that people learn in every other country: History, Science, Maths, Spanish (the equivalent of American/British English courses), Foreign Languages (usually English), Geography, Economics, etc.