https://www.cdc.gov/ncbddd/actearly/milestones/milestones-5yr.html The things they have listed here even a normal 2 year old could do. 4 year olds are known for doing things like playing violins and driving dirt bikes, skate boarding with tricks etc. 3 year olds are often nearly straight up being people emotionally, cognitively / verbally, interactively and conversationally. The CDC is a criminal organization. Also I looked up the ORIGINAL sesame street videos. Oh my god these are works of genius. They are basically *genuinely* designed to teach a child and loaded with seriously good original music. The videos are basically "musicals". Interesting the original sesame street videos were basically all black casted (one super jew and one white who was probably jewish too). My guess is they were genuine videos targeted at teaching / raising black kids in the very best way a day show possibly ever could. One thing about the original sesame street videos, it appears episodes less than ~1200 are basically completely and utterly lost. There is only like 13 available. They also come with a "modern" warning not to show to kids anymore.