There is no single “right” way to study a particular subject, and people often have a preconcieved notion that private music lessons are better than group music lessons. In reality, neither is better than the other, but each approach has its own distinct advantages which are important to keep in mind when deciding the correct method of study for your particular goals.
There are many advantages to private music lessons, but the most tangible is that private music lessons are often the fastest way to advance and develop strong fundamentals in the instruments of your choice, especially for beginners. They are often also the best option for advanced musicians who need the individualized focus to push their skills and technique higher.