Today i took DD who is 2.5 to our local themepark and she was playing in the sand pit with another girl her age. After around ten minutes of them playing together another girl came to the sandpit with her mum and the girl came over to build sandcastles with my daughter and the other girl they were all playing happily and then when the mother of the girl who had just joined noticed she ran over and pulled her daughter away by her arm and told her to go play by herself. I dont understand why she did this does she not want her toddler to interact with others or does she think her child is to good to be making friends with ours i just dont understand why she would act like this or what her problem could have being?