There's been a big brouhaha to the recent casting of Jodie Whittaker as the latest incarnation of the Doctor in the BBC TV series Doctor Who. Mainly because this is the first time in the show's canon that the character is being played by a woman.
Here's the thing. Change. It's the only constant in the universe. Everything changes eventually. Back in 1987, I had a hard time accepting Star Trek: The Next Generation as the successor to the original series. It took a few years for me to get behind it. Then came the Star Trek reboot movies. I've never gotten into those, and each time there's some change, my reaction was 'how dare you do something different'. Same goes for the continuation of the Star Wars movies under Disney. For me, the series ended at episode 6. I have no interest in watching further episodes (notwithstanding Rogue One, that was cool).
Yet Star Wars: The Force Awakens was a massive hit. Many people loved it. Others felt it was a retreat of what went before. That was Disney's decision. When it comes to Doctor Who, ultimately it is the BBC's property. They can do whatever they want with it because it is theirs. It is also science fiction. A TV show. It will not shatter the fabric of reality as we know it.
People can simply tune in or not. That is the viewer's choice.