I don't know why there's a general "mentorship" trend recently and I have a visceral dislike of that particular term but I do know that my efforts to learn programming became dramatically more effective when I had someone helping me. There are so many unknown unknowns for a new programmer, having someone to just help nudge you in the right direction occasionally is tremendously useful. If that person is also a good coder, then you're more likely to start out with good habits. Bad habits in general are difficult to unlearn and if you're learning by yourself, you're unaware that you're even forming habits.