Thinking about math textbooks

As a former student, I loved to use textbooks. My teachers taught me according to the textbooks. It was very easy for me to follow the structure of the textbooks. I read the definitions given in the starting of the lesson, then I looked at the examples to understand the use of formula to solve the questions. It was very easy for me to solve the worksheet questions by following these two steps. Although I was not able to solve all the question, I needed help of my teachers to understand certain questions. As a teacher, I noticed that it is not easy for each students to understand mathematics by just seeing the definitions and examples given in the textbooks. Moreover, the textbooks usually have 2-3 examples those are not enough for students to understand the whole concept. Linguistic used in textbooks also sometimes confuse students. Moreover, sometimes examples are given as the perspective of others, and students don't feel connected to them.
Previously I thought that textbooks are important for students as they get to know what they are doing, but now my perception has been changed. Now I think that when teachers follow everything given in the textbooks they become so dependent on them. They don't want to try different activities those increase the critical thinking of students. The school, I went for my short practicum doesn't use textbooks. The teachers only get the idea from textbook about the topic, then they plan their own activities, and worksheets suitable for that topic. The activities they choose are connected to the real life situations, and students like to discuss those activities with their peers and teachers. I observed that students learn better in this way. I think this is the reason schools nowadays trying to adapt new techniques of learning  instead of making students text-books dependent.