system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Trek]in the 24th century they can alter you to look like a totally different species then totally change you back, all in a few hours. If they have that kind of cosmetic surgery capability, why aren't extreme body modifications common?

like imagine if furies could have them selves transformed in that way?
gpt
For the same reason people don't spend all day every day in the holodeck bonking supermodels, or gorging themself stupid with replicators, or filling their rooms with gold bricks; they've evolved, and such things are recognized an unhealthy.

Think of it this way, centuries ago it could be seen as a status symbol and attractive to be fat, as it's not easy to have significantly more food than you need. Now, it's seen as a bad thing, because it takes restraint and planning to be slim compared to allowing yourself to become overweight. Federation culture has evolved in a similar way.