Hi xrok1 - a scaled copy would not require any other adjustments, but scaling produces a different shape than offsetting.

Here's one example of a base curve (yellow) and its offset:



Notice how the proportions of the curve change in the offset - the end segments are smaller and the middle segment is larger, it is not the same kind of process as a scale.

If you're looking for a kind of "even thickness", then offsetting will be the thing that generates that.

If you don't need a constant thickness and just want something to generally shrink down, then you could use scaling instead.

- Michael