Getting direct feedback from people you know, from people who've already watched your videos and from people who haven't watched your videos yet, will definitely help provide more specific feedback.
Well, this is a sad thing.
Most of the supporters that you will get aren't from your relatives. They will only knock-in and support you once you're profitable and successful with your YouTube career.
Every YouTuber that I've watched does have that experience during their start.
Yes, that's true. Starting out is the easiest thing to do and increasing your subscribers, likes, shares, etc. is the hardest thing to achieve.
But it's also not impossible, you just need to get your groove on by finding out your niche when making YouTube content and this is what you need to really focus on, in order for you move forward towards reaching that goal.
A daily grind will help him reach the minimum requirement for his channel to be monetized.
As long as the viewers started to like his content, there will be a quick and massive coming of subscribers. Well, if he'll focus on his channel with quality contents for a year I'm sure he can do it.