mega blocks - duplos - legos pipeline as your kid ages

we have yet to reach the legos stage (my son is 2) but I’m kind of a toy minimalist and megablocks and duplos are soooo fun. a must have. megablocks are great for 6mo-3Y and everyone’s different but you can really start having fun with duplos around 2Y. my son likes making towers while I reach a flow state making pleasing color combos. classics for a reason!!!!