One man's superstition is another man's common knowledge. All things can serve as a hindrance in time, depending on what you're trying to do. If it hinders you, then it is a hindrance.
What can happen and what this question usually refers to is whether or not they halt people from learning - and that can happen. Any thought or belief when held onto rigidly can cause a 'closed' mind where new ideas cannot be considered.
What can happen and what this question usually refers to is whether or not they halt people from learning - and that can happen. Any thought or belief when held onto rigidly can cause a 'closed' mind where new ideas cannot be considered.