My son started playing games (with me) at 4 yo (partly because we were all locked indoors for months on end).
Anecdotally - and providing you use some discretion as to choice of game - I’ve found it absolutely fascinating to watch both the pace of development of problem-solving skills, and some of the frankly astounding leaps of logic and intuition young kids are capable of. I vividly remember one rock-moving puzzle in Breath of the Wild that had me stumped until he piped up with a proposal that turned out to be the correct solution. Fascinating stuff.
Anecdotally - and providing you use some discretion as to choice of game - I’ve found it absolutely fascinating to watch both the pace of development of problem-solving skills, and some of the frankly astounding leaps of logic and intuition young kids are capable of. I vividly remember one rock-moving puzzle in Breath of the Wild that had me stumped until he piped up with a proposal that turned out to be the correct solution. Fascinating stuff.