There aren't enough data points to claim it's a universal pattern, but still, there do seem to be a lot of data points that suggest that cramming stuff into a child very early has all evened out by the time they are an adult.
It's easy to forget, but 0-5 is, in terms of these advanced skills like "reading" (as opposed to "understanding what my body feels like"), not even 1/4th of a childhood. There's no way to stick a concrete number on it, but it's probably less than 10%.
We have a lot of evidence that depriving a child of the basics of life can affect them all their life, but I am not sure I've ever seen a study that has ever supported the idea that it is beneficial to accelerate education at the toddler phase. It's like trying to win a marathon by running really fast in the first 300 meters; unless you are going to be able to maintain that pace for the entire rest of the marathon, you probably haven't accomplished much.
It's easy to forget, but 0-5 is, in terms of these advanced skills like "reading" (as opposed to "understanding what my body feels like"), not even 1/4th of a childhood. There's no way to stick a concrete number on it, but it's probably less than 10%.
We have a lot of evidence that depriving a child of the basics of life can affect them all their life, but I am not sure I've ever seen a study that has ever supported the idea that it is beneficial to accelerate education at the toddler phase. It's like trying to win a marathon by running really fast in the first 300 meters; unless you are going to be able to maintain that pace for the entire rest of the marathon, you probably haven't accomplished much.