as I kid I could never keep a set together. I'd put it together as soon as I got it, then tear it apart and leave it with the rest of the lego sets. Mom would get rid of the instruction booklets (or i'd tear them up) and then just more pieces that were hard to build outside of their intended purpose.
I hoped my kid wouldn't inherit that but I started small just in case. at one point we had the first 3 or 4 waves of the mixels put together on display, a lot of the little star wars stuff, and some batman stuff. All long gone... books are in shambles, legos are scattered, and many many pieces missing.
Fast Forward a few years. If I can tear him away from Fortnite, my son will build stuff with me on occasion. We take our sweet time though. The Millenium Falcon is from his birthday in 2017, and we still have a 5 more bags worth of parts to go.
I really want to get this thing finished before Christmas so i can pick up something else.