You fill the tub, and the crying starts. Your toddler won't sit still, hates water near their face, and tries to climb out before you've even reached for the shampoo. By the end, the floor is soaked and you're worn out.
The usual bath toys don't hold their attention for long. Rubber ducks just float there. Squeeze toys get boring fast and can end up with gunk inside. Handing over a phone in the bathroom isn't an option.