One to one lessons with a private tutor helps point out good technique and importantly verbal positive feedback on progress.
YouTube videos don't interact with you and advise on your playing, YouTube videos cannot stop you when poor technique or approach is evident, private tutors can correct mistakes before they become deep routed in you approach.
This modular approach to the beginners course should keep the course engaging while allowing students to gradually build skills.
As always drop me a line and we can have an informal chat about a tailored approach that suits your level and commitment.