I will go out in the rain but it depends upon the season and my training needs.
We have little rain right now and my fitness is good, so, missing one day is no big deal. Other times, it might be rainy for a whole week and then, I must ride in the rain....no real choice. I did three Brevets this year in pouring rain and two of them had sleet and snow. I was seriously hypothermic on one of them.
Ya, I ride in the rain.