I have minions who want it to be every two weeks.
I have minions who are happier if it is weekly.
I have minions who do not want them regularly, but want the option on occasion.
These are all simultaneously fine. When I miss one with a weekly regular, nobody frets. When I miss one with a biweekly, I make sure to reschedule if it makes sense. And I always make time ASAP for someone who doesn't usually want that meeting, when they ask for it.