You said something fairly egregious on a public forum and are getting pretty polite responses. You definitely do not get it because you’re still trying to justify the behavior.
Just consider that you will make mistakes. If you make a mistake and signal people will have significantly more time to react to it.
I've been driving for decades now and have plenty of examples of when I was and wasn't paying close enough attention behind the wheel. I was raising this only as an interesting different take or lesson in my own experience, not to look for approval or disagreement.