Mike, That is assume and took some thinking to make.
I still have my middle son's Lego blocks from the middle 80's along with his GI Joe figures and toys. Now his son my only grandson who is 8 will come over and play with them. Him and I still build space stations, rocket ships and buildings together. My youngest granddaughter who is 4 tells her mom that she want's to come over and play trucks and cars with me. These too are from the 80's we kept all of the kids toys that were in good shape. My daughter took all of hers when her daughter was born, but the boys left them here so the grand kids could play with them now.
What I like about Legos is the kids have to use their imagination and mind when building with them. Not like Videoed games where they just push buttons.
The only problem I have now is getting this old body to bend and get up from the floor after playing with the grand kids.
Jim