> one could probably build a vacuum robot prototype that’ll also clean up all of the kids toys and sort LEGO bricks by colour and size. Parents worldwide would love it.

And what's the next step? I can't even imagine how rich (and how large the their houses) the parents need to be for them to comfortably buy such dedicated tool. Perhaps 100x~1000x richer than me?

And, while this is just pulled out from my rear side, I feel even getting this passed safety regulation would cost your $17M. It's a fully automated machine working next to toddlers!

On the contrary Github is a proven product.