Got those servers hanging around with Windows NT still on them?
Got that VM sitting in prod which might be a bastion host or it might be a waste of space?
How do you know?
Sometimes you need to take a risk. Sometimes you can turn something off without turning something off.
You can take the same approach with code, with Jira tickets, with planning.
Too much fear can be shown for the sake of edge-case customers or “well it’s always been done it like that” type thinking.
Keep your software and systems healthy. Keep pruning it. Keep challenging it. Keep it alive. Show no fear.