So, should I make a Youtube channel? Do you think anyone would ever watch or subscribe? :)

So I've been toying with the idea of making a Youtube channel for a few years now, but I keep holding myself back. If I did create one I'm not totally sure what I'd put on it.. Perhaps reaction videos to trailers (games or movies), updates on the channel, and maybe just random things on life..
The real question though is, is this a good idea to go through with or am I just good keeping it as a thought?