answer:you don’t need to fit in. if you are a discipline and good student, you will do well and the professors will like you. don’t let the younger students (or their remarks) get you down. Ultimately, the person who has the highest grade (thus setting the curve) commands the most respect. I have had mature students in my Biochemistry classes. One of them was REALLY good and was really popular with everyone, because they all wanted to learn from him! PS – why would you ever want to fit in when you can stand out? :)