Most of the bathrooms we remodel across Baltimore and Anne Arundel counties start with the same request: take out the tub nobody uses and put in a walk-in shower. It's a great upgrade, but a shower is a harder thing to build correctly than a tub, because every seam is a place water can get through.
The part that matters is the part you'll never see. A properly built shower has a sloped, waterproofed pan, a waterproofing membrane on every wall that gets wet, and backer board rated for a wet area. Tile on regular drywall, or a pan without a real slope to the drain, is how you get a stained ceiling in the room below.
Then there's the plumbing. Converting a tub means moving the drain, often resizing it, and relocating the valve to a height that makes sense for a standing shower. That's licensed plumbing work, and in Maryland it needs a permit and inspection.
Done right, a tub-to-shower conversion takes about two to three weeks and gives you a bathroom that's easier to use, easier to clean, and safer as you age in the house. Done fast and cheap, it looks the same on day one and costs you a second remodel later.