Mario Kart Tour

Why is it whenever I race on multiplayer mode, all of a sudden the only items I am allowed to get are mushrooms. I love mushrooms as much as the next person, but if I am in 5th place, I do not need two mushrooms and some coins. Like at least give me a red shell or even a green shell at the very least. This is why I am still on F tier becasue they are so STINGY. Also, this might be unpopular but I actually miss the gacha system. But i lowkey have a gambling addiction so it's probably becasue of that. Back to the point, STOP GIVING ME MUSHROOMS PLEASE!!!!!