Except it's way less discoverable. The BASIC prompt was all you got on some 8 bits computers, so it made playing with it almost mandatory. Also everything was way simpler (less abstractions layers, no network) to grok for a young kid.
VS Today wheer there are 1000s of websites that will teach you JavaScript and 1000s of free video classes and hundreds of thousands of free examples. JavaScript is several orders of magnitude more discovable than basic ever was