Just to provide some counterpoint to the echo chamber here - as a Dad of a six year old who played with legos as a kid and again now, I can affirm - Legos and the sets they put out now are way cooler now than when I was a kid!
You might worry that the less general purpose, specialized pieces might stunt creativity, but guess what!? The 6 year old has no problem taking them completely apart and building something off script.
It's the olds who worry about keeping them all together and not losing the pieces so they can still make the thing on the front of the box. The kids don't care and will happily take it all apart and build things we never would have thought of.
You might worry that the less general purpose, specialized pieces might stunt creativity, but guess what!? The 6 year old has no problem taking them completely apart and building something off script.
It's the olds who worry about keeping them all together and not losing the pieces so they can still make the thing on the front of the box. The kids don't care and will happily take it all apart and build things we never would have thought of.