My little sis gonna get obesity surgery?

I have an obese 15 year old sister and she is 1.50 tall. Since she has diabetes, it is very difficult for her to lose weight, so my mother wants surgery for her. It won't be in the public hospital because they don't allow under the age of 18 but there is a problem... I am very afraid for my sister. So what if something happens to her? Have you ever heard of a 15-year-old child who had bariatric surgery? Is it more harmful to her because she is a child? ı'm very scared about her..
My little sis gonna get obesity surgery?
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