It's in a read only filesystem. You can't modify read only data, but you can choose to ignore it.

Only because it is mounted as one. It is like saying that you can't have your house in pink because it is green.

	▲	charcircuit 21 hours ago \| parent [-]
		If you modify a file on the partition the device will fail to boot. Your metaphor is not equivalent because it ignores security.