&gt; If there&#x27;s no direct harm<p>Again, that&#x27;s a big assumption. Plausible problems:<p>1. developing language skills early stunts development of more visual skills<p>2. too much structured time has drawbacks<p>3. &quot;it ought to be at worst a waste of time&quot; ... and additional stress. Opportunity costs could also include relationship capital (pushing your kid to do unimportant things means you can&#x27;t push as hard in other areas).