Most people like to do some ‘yoga’, but very few are interested when come to serious yoga practice to eliminate ignorance and egoism, to let go of attachment, identification and desires of wants and don’t wants (craving and aversion).
Especially when one is deeply attached to certain thinking and beliefs to be who ‘I’ am, and takes pride in being somebody with such and such qualities of names and forms, one will generate intense rejection towards the yoga teachings and the yoga practice about letting go of egoism, attachment, and worldly identification with qualities of names and forms. They enjoy being attached to certain qualities of names and forms, and be influenced by passionate desires to motivate them to live life ‘meaningfully’.
Even yoga teachers might also have identification as somebody who practices yoga and teaches yoga, and generate attachment towards the yoga practice and the action of teaching, and attached to the fruit, or the results of the yoga practice, or the action of teaching to be who ‘I’ am, attached to what ‘I’ do and what ‘I’ am receiving from the yoga practice, or from the action of teaching, whether with or without awareness of it.
There’s nothing wrong with that. Everyone is free to decide what they want to do with their lives, and what they want to do with their body and mind.
If anyone is not interested in some or all of the teachings and practice of yoga, but only interested in doing some yoga exercises for attaining some health and fitness benefits, they can put aside all the yoga teachings and the yoga practice that they don’t like, or don’t agree with, and be happy. Maybe one day later they might come in contact with the moments that they might pick up what they have left behind, or not. It really doesn’t matter.