First of all, this article may bother some of the readers including the students or masters. we all know that all taekwondo schools charge students a certain fee for the enrollment, because learning is not a free service by schools, and masters deserve to get a price for their teachings.
the issue is when the students do not get what they expect from those schools they go to.

Students can spend months or even years without reaching reasonable levels or sometimes their progress isn't noticeable at all.

  Some taekwondo schools do not deserve to be called ''schools'', because the ingredients that make them deserve the name of ''school'' do not exist, therefore, they turned to be just taekwondo businesses, nothing more, That is the ugly truth.

  Bad signs:
- The instructors or coaches in charge do not master taekwondo techniques, can not demonstrate most of them and can not explain them.

- Taekwondo belt promotions;
 Some schools do tests each month, 2 or 3 months to the same students, therefore, a student can be able to test for black belt after two years of practice or even less, which is a sad truth. And even if there are few exceptions, and some students can reach black belt in a short time, they still have to spend a reasonable period practicing the art. 

Not everyone should do the test for the next belt unless they meet the requirements, because some students could be slower in learning than others, therefore, they better get more time to master the techniques of their actual level before moving to the next level including taekwondo forms (poomsae). Unfortunately some Taekwondo schools promote their students without giving any interests to the forms, which makes the students see the poomsae ''useless'', but this is the martial art, we do not take the parts we like and through away what we do not like.

- The high monthly fee and low quality equipments:
Some schools fees are very high which makes them look like they are only interested to take your money, and ignoring the main objectives of martial arts.

- Schools that avoid participations in competitions (sparring or poomsae...) put their students in isolated environment. This way they don't have clear and correct ideas about the competitions in Taekwondo.