It is true that a strong foundation in English can be beneficial for learning other languages. English is a widely spoken and written language, and it is the primary language of instruction in many schools around the world. As a result, learning English can give you access to a wealth of educational and cultural resources, and it can also make it easier to communicate with people who speak different languages.
Additionally, English and many other languages, particularly those in the Indo-European language family, share a number of similarities in terms of grammar and vocabulary. This means that if you have a good understanding of English grammar and vocabulary, you may find it easier to learn other languages that have similar features.
Overall, learning English can be a valuable skill that can open up many opportunities for communication and education, and it can also make it easier to learn other languages in the future.