Sorry for the delay... I stopped paying attention but am back. Also can be found in Discord.
You can definitely ferment and age in a single container, but you risk getting off flavors from the lees over time. It's just yeasty taste, so not a big deal, but it's more likely to come out better if you rack to a secondary container once fermentation is done.
I'm considering racking at least one then for the reasons you shared and others.