There's nothing wrong with doing YouTube for money any more than there is anything wrong with doing YouTube for the fun of it. The important thing is to keep in mind your reasons for what you are doing; if it is for fun, then don't complain about lack of views and income if your channel is not popular. If it is for money, then treat it as a business and don't complain about lack of views and income...DO something about it.
As has been mentioned before, creating a YouTube channel is a very tough and challenging career option. You have decided to run your own business in an incredibly crowded and competitive market place, so you had better have a very clear plan and/or be very talented indeed to even survive, let alone to make a living.
I'd have to respectfully disagree with:
it's like you're boss saying to you 'oh yeah, We're cutting your hours in half and docking your pay by £2 an hour... Because you said f*ck twice' or something
If you are a content creator then you are your own boss, YouTube is your market place, and the advertisers are your customers. If your customers don't buy off you because they don't like to hear curse words then you just need to stop cursing in front of them...it's as simple as that. And even then they may not buy from you, because there are 10,000 other market stalls selling exactly the same thing but wrapped up a little better. By the way AmberAndGolden, I'm not referring to you personally, I'm just stating a general principle :0).
I see so many comments blaming YouTube for a lack of views and income, and to be sure it is frustrating when they make big changes without informing the creators. This is no different to the kind of challenge that any other business faces though. Circumstances change, things happen totally beyond your control and you just have to be proactive in creating multiple revenue streams; Patreon, affiliate links, merchandise.
For me, I started my YouTube channel for business reasons, then continued with it because it was fun, and now I'm back to looking at it as a business (that is still a lot of fun!).