I never make New Year's resolutions. I've
always found the ideal to be kind of lame. So, it's not an age thing (cause I'm past 41 yrs).
I believe that if I want to start or stop doing X, then
I will now. I don't give a hoot about the date.
Although, I think that I get Perna's point about the tasks being easier to keep track of if kept to the first of whatever month, for record-keeping. That makes some sense to me. But, I'll stick to my way