No, you wouldn't, so why do people persist on going to cosmetic surgery providers when they want weight loss surgery. For me, the contrast is as clear as the manicurist/dentist example.
Weight loss surgery is permitted for use in the treatment of obesity, something that is formally recognised as a disease, and something that will shorten your life if left untreated. Choosing a weight loss surgery provider is about choosing a partner who you'll be working with for the rest of your life to achieve and maintain your weight loss goals.
It could not be more different than cosmetic surgery. Cosmetic surgery is about appearance and not long term health. In fact you can't have most cosmetic procedures unless you are a healthy weight. It involves a shorter term relationship that often involves a procedure, that once completed, is the end of the relationship between the patient and the provider.
Let me put it simply, your boob job doesn't require the commitment to long term support and aftercare that a gastric band or gastric sleeve does.
There are several excellent, specialist weight loss surgery providers in the UK, several of whom are world renowned. None of them are cosmetic surgery practices too. Comparing the focus of these organisations is like comparing chalk and cheese. Equally, there are a lot of excellent cosmetic surgery practices and they play a very important role, but they do not profess to be weight loss surgery experts, any more than we claim to be plastic surgery experts.
So, get the specialism and long term aftercare support you need for success by choosing a specialist weight loss surgery provider for your weight loss surgery, whether it's a gastric band, sleeve, bypass or balloon. By all means, go to one of the reputable cosmetic providers for your cosmetic work... and whatever you do, don't go to your manicurist with toothache!