A lot Paths will be in Ref attachments. The same would go Profiles.

See how Extrusion and Thicken works with Keep Original option.

Paths will often be in separate files holding guide and alignment geometry.

Multiple Profiles can be Ref attached models in the active model and extruded using Paths in the active model or in other Ref attachment.

This separates the higher LOD geometry from the concise and reusable geomtery.