There simply isn't enough space for your atoms to pass through the atoms of a solid object. You can swim in water and walk through a gas because the particles are so spread apart, but you cant walk through solid objects because the particle configuration is extremely dense.
unicorns cant fly but they can walk one rainbows
you cant
no u cant walk or do stuff on Jupiter because it does not have a solid surface.
cant
Yes, air and water.
A cloud isn't a solid matter. All a cloud is, is a vapor of water.
you cant
Someone who cant walk through walls
theyre made of wood
u cant go behind it
no you cant.
u cant dumbo