I really dislike all the bizarre "lego ain't what they used to be!" comments - they honestly come from people who haven't spent time with modern legos. For reference I was born in 1970 and played with legos probably from 1975-1985, and then seriously picked it up again in 2012 or so when my son was old enough to play with them. People paint this picture of these new legos that are made up of like 5 parts that you just click together and have a transformer or something. Reality is far from that - there are so many cool pieces that let you build things never before possible. I was going to make an analogy about it being like having 100 crayon colors instead of 1, but it is more like having a whole artist's toolbox at your disposal, including 100 crayons. People say, "but it is too complicated!" - well then just buy the classic bricks, they are easy to purchase in bulk, and you can find lots of instructions all over the place for fun ideas to learn with.
And then there's this weird idea that it is so complicated that you have to build it once and then never take it apart. Please, taking it apart was a huge amount of the fun for my son. He'd repurpose parts into his never ending scene that sprawled a 10x10 area in our family room. He (and us) would play with them literally daily for at least an hour, if not more, adding sets as they came along. Much of it stayed in bins, just because he had so much (youngest child of a youngest child, means you have lots of generous Aunts, Uncles, and cousins!).
Even now, at 13, he literally was putting a set together with is friend just yesterday. It's rarer now, since he likes the intense interactively of computer-based "legos" (People Playground, Minecraft, Garry's Mod, Teardown, and modding for other games, not to mention VR stuff).
Modern legos are awesome.