But if you must bore your DC to death my DD did like the wooden Velcro fruit and veg you could cut up when she was 2 / 3
DS loved his Brio train set and was puzzle mad
He discovered Nintendo DS age 4 with every other DC at the time so that was that really
It taught him to read well in record time so I was delighted with that side of it
Luckily iPads weren't a thing when they were little thank god so I do understand a bit where you're coming from OP but there needs to be an element of fun
DD played with her Sylvanians for years and I highly recommend them and before that she was into Happyland from ELC - all plastic of course but amazing for creative and independent play
I bought DS a wooden castle from ELC and he loved lego which again is plastic but excellent for creative independent play