To be honest I've never felt the need to deliberately ride in the rain. I have a car for good reason. If I can get there warmer, dryer and arguably safer in the car then I will. Don't get any brownie points for showing up to work like a drowned rat with nuemonia haha
Sometimes I even leave the bike at home just simply cause I can't be arsed with the faff of getting all my kit on, going out to the garage, undoing all the chains/locks, pushing it out to the drive, relocking the garage, warming the bike up.... only to get to work then have to get re-dressed again then repeat the whole process again when I come home.
Sometimes it nice to just pick up the key fob, jump in and go haha