It depends on how hard those every day rides are. When I bike commuted every day, I didn't need rest days since I wasn't really pushing my heart rate up all that high. I was also in my 30s back then, I am now 62 - the definition of hard rides is also related to your age to some degree.
If I do a long (more than 3 hours/50 mile) ride that involves hills, etc. I will usually not bike the next day - same as when I lift weights at the gym, I don't lift the very next day. Muscles do need recuperation time, but only when they are actually stressed, or we would only be able to walk every other day!
Heart rate monitors are cheap and apps are free - if you aren't using one, that will help you make the decisions.