"Very few will allow their desire to leave fantasy"
You can say that again in front of roblox game developers and most of them will sweat.
Big breasts surgery are dangerous sure, but it's also expensive.
No sane women would appeal to our male fantasy of big breasts unless they themselves knows the risk and consent to doing it.
In this case it's their responsibility, no one will force them to do the surgery, it's the behaviour of wanting to be well known and that are the motive of people who under went this surgery and most of the time it's women who got this behaviour.
While obesity is not something a person will be aware of until people called them out or when they became aware of the symptom it's already too late.