Tajweed is the Science of reading the Qur’an correctly. Learning how to recite the Qur’an correctly is an obligatory act upon EVERY Muslim.
Narrated Uthman, Prophet Muhammad ( ﷺ ) said:
” The best among you are those who learn the Qur’an and teach it to others “
(Sahih Al Bukhari vol 6, book 61, no. 545)