Everyone wants/needs subscribers. I wouldn't advise asking for them. I'm only small too but subscribers will come in their own time if you have quality content

Subscribers means nothing. its the views what count.

Kneesocks is right. Although, a subscriber can be a good thing, because more than likely they're going to keep watching your stuff.
Here's the thing: When I've asked for subscribers or gotten them out of a trade (like sub4sub type deals), those people aren't really going to keep up with my videos.
They're really just looking for me to sub them instead of actually paying attention to what I'm doing.

But, if I gain a subscriber due to a video of mine, or a series I'm doing, that person will keep watching.
So, the key is quality content. The higher the quality or entertainment, the higher chance of people staying and enjoying your channel.