I always lock the 2 doors (front and back) at night, and when I leave the house, and it seems pretty important to me. Does safe-guarding my shit fairly meticulously make me materialistic?

I’ve heard it’s a good idea not to put too much value into material things, and I try not to, really. But there are THINGS that mean a lot to me, and that I would like to protect here in the confines of my home. Does this make me un-free? Is this unnecessary or obsessive?