I have a baby walker for my six month old and it is really hard to move it on carpet; she definitely would not be strong to do it, so last week I put her in the kitchen on the tiles and it is still hard to move it, like there are buffers there so stop her whizzing too fast or something, but it seems to stop her from moving atall. Still, she loves the feeling of being upright (she still doesn't have the hang of the door bouncer) and there is an activity dashboard that she loves bashing.