People often take advice from teachers and mentors because they are seen as knowledgeable and have a lot of experience. They usually know a lot about their subject and can give good advice on academic and career issues. Plus, they often care about their students' success, which makes their advice feel more trustworthy.

Friends are also a common source of advice because they understand what you're going through. They can give advice that's really relevant to your life because they're likely facing similar challenges. Plus, advice from friends comes with a level of understanding and empathy that you might not get from other sources.

Professional advisors are important for making big decisions like financial investments or career changes. People trust them because they are experts in their fields. For example, a financial advisor can help you plan for retirement, or a career counselor can help you decide what job is best for you.

Online communities and forums are great for getting a range of opinions quickly. You can ask about anything and get answers from people all over the world. This can be really helpful for specific problems that not everyone has experience with. Plus, being anonymous can make it easier to ask personal questions.