AITA for having my daughter dump the milk on the floor to make a point?

My 13 year old daughter has been begging us for a "skin care routine". I think she's too young, but she's been begging for a long time and she had me look at a kit that you can buy for $30. I told her she could buy it with her next allowance, but that's not soon enough.<br><br>She has been begging me to buy it since Friday, but I've been telling her that's not happening.<br><br>Earlier today she was watching tv upstairs and told me that she was going to dump her milk if I didn't wash it immediately. I'm a little sick right now and I'm also doing some school work for my next class, so I told her that I'm not going to wash it right now and if she dumped it that would be on her. She dumped a full cup of milk on the floor.<br><br>I was really annoyed, but I was trying to make a point. So I had her dump the gallon of milk on the floor as well. She was very upset, but I told her that wasting food is not something to be taken lightly.<br><br>Then I told her that dropping $30 on the skincare is also a waste, and if she's so willing to throw things that cost money on the floor I don't think she's mature enough to spend money.