I did buy my kid Lego Boost.

I chose this, because I like robots as well, we already have Lego, she loved playing with duplo and with help could manage to build a smaller 5+ lego set.

It is not cheap, but you can build several things out of it (I remember a Jhonny 5 style robot, a buldozer/tank(?), a guitar and animatronic cat.

The programming interface is simmilar to Scratch Jr, and she can manage it fairly well (mostly playing with the sampler set included with some of the builds, i.e. when robot-cat is supposed to sing :-)

The builds itself are fairly complicated so you'd be doing most of those.