Calendar on MacBook not showing "Scheduled Reminders" as an option

I am trying to view scheduled reminders on Calendar on my MacBook Pro. "Scheduled Reminders" does not appear on my Calendar List, so responses to this question on other threads, which direct me to "check Scheduled Reminders", is not even an option. I have followed instructions given on other threads, but none work. I cannot find anywhere in Calendar Settings or System Settings where this would be disabled. I am running Sonoma version 14.6.1 on a 16-inch MacBook Pro from Nov 2023 but will note that I transferred all my data from another laptop.

A couple of other bits of info which might be relevant:

1) many years ago, I had trouble syncing events between my iPhone and the MacBook I was using at the time; I'm not sure that problem was ever resolved, even though I don't seem to have trouble with that at present (I rarely add events to my iPhone so haven't had many opportunities to observe a problem if one still exists).

2) My MacBook Pro is the only device that is having this problem. The Calendar on my iPhone, iPad, and an iMac from 2021 that I recently repurposed from a relative all show the "Scheduled Reminders" calendar. All four of these devices are signed into the same Apple iCloud account.

Any help would be greatly appreciated.