No, it is not too late for you to try a new field at the age of 28. Many people switch careers or explore new industries at different stages of their lives. In fact, at your age, you have gained valuable work experience and skills that can be transferable to the field of architecture. Your background in QS can be an advantage as it provides a solid foundation for understanding the technical aspects of construction projects. Additionally, your experience in another field can bring unique perspectives and diverse thinking to the architecture industry. To transition into the architecture field, you may consider updating your knowledge and skills through further education or certification programs, networking with professionals in the field, and showcasing your relevant experience and passion for architecture through your resume and interviews. It's important to highlight your transferable skills and demonstrate your enthusiasm and commitment to learning and growing in the architecture field. With dedication and perseverance, you can successfully embark on a new career path in architecture.