7 yo DD1 was asked today to tidy her room. She does share it with 3yo DS so I have taken that into consideration, and told them both they have to tidy their own stuff up.
DS goes into the bedroom, and duly picks up all his stuff. No threats needed, no shouting, no moaning.
DD1 goes into the bedroom and immediately begins protesting as to the unfairness of it all. The bedroom floor was swimming in hama beads, teddies, books, school uniform and fairy paraphernalia. DD1 shoves all of this, including the school uniform under the bed.
I go in to check how she is getting on. She is sitting on the now empty floor, writing in a magazine. I uncover all the uniform under the bed and I'll admit, I can feel my blood pressure rising. All DC know where their dirty clothes go and they also know I won't wash it if it's not in the wash basket. I mention to DD1 that she will go to school tomorrow in dirty uniform if it doesn't end up in the wash basket. Cue massive tantrum.
I studiously ignore her, and go into tend to DD2 who is requesting lunch in that way that 18 month olds do. DD1 is still tantrumming like a 2yo.
I go back into the bedroom, she is writing in the magazine again. I ask her if she has put all the junk away from on her bed. She says no, she doesn't want to do it and thinks it is unfair that she has to tidy up after herself. I climb up onto her bed (no mean feat!) and lob it all on the floor. I tell her it's fine if she doesn't want to put her stuff away. I'll come in and do it for her, but I will put it away permanently in a bin liner outside.
Cue more tantrums, screaming, crying. I'm terribly unfair apparently. She doesn't see why she should have to clear up after "everybody". It's her mess. I tell her that is how I feel every weekend and actually, if her 3yo brother can cope with tidying his stuff up, there really is no excuse for her not to do it.
DD1 announces she wants to go the park. DS is quite keen on this idea too. I tell them we will go once DD1 has done her room. She continues to refuse. I continue to ignore and go back to sorting DD2 out.
By now, I am ready to lose my rag with her. I don't think it is unreasonable for a 7yo to take responsibility for their belongings and put them away once she has finished using them. DD1 disagrees. Apparently, it is my job to tidy up after them all. It is my job to tidy their room, make their beds and put their clothes in the wash basket. Apparently, according to DD1, that is what I had children for 
.
Needless to say, DD1 is not going to the park now. I have, by some heroic feat managed to keep my voice at the same level throughout her tantrum. The bedroom is now done but it took nearly 3 hours of tantrums to get there.
Did I do the right thing?