Have never done this at a Massage Shop only with privates.

But with the showers being in the room at Poppies and I assume others, is this a common thing?

Do you ask for it and is it often ok? It's probably more for a return visit situation.

Was thinking of asking the next time I am at poppies or a place with showers in the room.

Or is the shower with the ML more an after thing? The before massage shower is a great way to get things started.

What other places have showers in the room?