When I was a kid I used to spend entire days building and creating new stuff once I built the designs from the booklets. Today when I see a Lego kit is kind of another toy: is designed to build one and only one design, compared to the generic kits that were sold and also popular many years ago. All these new kits pieces are just to accomplish one build. The Lego spirit of ever combining and creating with same pieces…
Legos releasing single build sets that are clearly targeted for adults (look at the 18+ age statement) does nothing to harm you - it's targeted a different consumer demographic.
It's like Taco Bells now serving alcohol or Costcos now selling Asian groceries. Companies will not stay stagnant and will look at additional opportunities to expand to new buyer demographics.