Yes, I know in my family it was 50% accurate. Our symptoms were much more consistent with a sinus infection than COVID, when we got the first positive we were genuinely surprised. We weren't going to stay home just because we felt a little under the weather when the symptoms were not COVID symptoms, otherwise we'd have stayed home a dozen+ times over the past few months, from not sleeping enough to other viruses etc.
I want to be clear that this isn't about you, specifically, as it is very common behavior, but this annoys the cr@p outta me. Yes, you should have stayed home dozens of times over the past few months!!! Forget Covid, and let's say it wasn't even strep, just a cold. Why is it ok for other people to have to miss work or school or even be sick for a few days just because you didn't feel like missing out on an event? Why do entire families have to get sick because you didn't want to keep your kid home from school for a day or 2? I don't get it.