I agree. On the other hand, 3D printing itself could displace LEGO as a creativity outlet for kids. But there's something about physically snapping blocks together and experimenting that couldn't be replaced by CAD software.
3D design and assembling LEGOs are different levels of learning/play. Perhaps we could compare it to oil paints vs. watercolors. A very young child is perfectly capable of smearing oil paint on a canvas, but watercolors are a better starting point.
Not to mention I found the inherently limited nature of LEGOs was a great exercise in working within a set of constraints & thinking "outside the box" to beat them.
