The relationship between the licence fee and the BBC isn’t that simple. You must pay the TV licence fee if you receive
any broadcast television generally available to the public, regardless of if it’s BBC content or not. If you only watch Channel Four, and never BBC, you must still pay the licence fee. Your viewing habits are completely irrelevant.
The TV licence comes from law, and the government happens to delegate responsibility for collection to the BBC. But the BBC doesn’t get the money directly, it’s handed over to the government who then allocates to a number of different public broadcast functions. As it happens the majority of that money ends up back with the BBC, but not all of it.
In short the TV licence fee is really a tax on receiving public broadcast. It just so happens that the majority of that tax is used to fund the BBC.
Also the BBC isn’t a normal company. It can’t unilaterally change its funding model, only the government can do that. As the U.K. primary public broadcaster it can’t raise funds by charging a traditional subscription, or by advertising, the law prohibits it. Additionally the BBC is also bound to create radio broadcast, which is also funded by the licence fee.
So the BBC hands are tied. It’s unfair to criticise an organisation for failing to change something it has no legal ability to change. I’m sure the BBC would love to explore other funding options, but politicians aren’t interested in playing ball. They would rather trade on peoples dislike of the licence fee for cheap political points, than engage in a proper conversation about how, or even if, we fund public broadcast in the UK.
The BBC is held up as one of the best, if not the best, public broadcaster in the world. It would be a shame to see it die, or heavily diminished in its capabilities. The BBC provides far more public good than just news and TV. It produces incredible amounts of educational material for schools, and has provided an incredible venue for some of the UKs best journalists and documentarians like David Attenborough to truly hone their craft, and educate billions about the world we live in.