Funny: The first thing that comes to mind is the experience of being a kid over summer break, and having adults ask “What grade (year) are you in school?” and the kids giving each other a massive eyeroll and shrug, like: “There are no grades in summer. Ask us which one we just finished or which one we’ll be starting next.”

Similarly, relationship statuses of the “it’s complicated” type.

Although, for some people, these too can be oppressive, for example, if a kid doesn’t learn the way other kids learn and therefore traditional school doesn’t work so well for them and the authorities are always deliberately “holding them back” a year, or if a person is in an exceptionally bad relationship and the complicated relationship status is a tool of domestic abuse, or if the government doesn’t recognize their relationship status or punishes them for it. But for most people, I think these are neutral (non-oppressive) experiences of being marginal. It would depend on the person and exactly what’s happening to them.