Wooden stairs over the stone slabs.... possible?

[Rollmops]

Our back garden has an elevated part and 4 stone stairs leading to it. I want the stone stairs gone, firstly, because they are ugly and secondly, we have toddler twins.
Would it be possible to build a wooden staircase over the existing steps or should we get rid of the stone slabs first?

Advice greatly appreciated!

[LadyOfWaffle]

Is is solid stone blocks or slabs? I'd pull them up and replace with sleepers or something...

[lalalonglegs]

Wooden staircase would be fine although I think stone sounds nicer.

[Rollmops]

Slabs and uuuugly ones, chipped from here-there and wonky as well. . What are sleepers?

[LadyOfWaffle]

Railway sleepers - big thick lengths of wood.

[Rollmops]

Thanks Lady, off to find some....