Do you want to find instruction that focuses on watching tutorials and gleaning all of your information from there, or would you rather use video conferencing to talk to someone directly? The delivery method that is used is essential since people have different learning styles and can benefit more from one educational type than another.
This is important overall, but even more in cases when the person seeking lessons is very young. Some instructors do not have experience working with children and it is not the same as teaching older adults. If you are seeking lessons for youngsters, it would be best to seek out someone who has experience doing so. Otherwise, you may end up choosing a teacher that does not have temperament or skill to work with someone in that age range.