Governments need to step in early and create two exclusive lists for approved genetic mutations. One for which every member of society can opt-in free of charge and a second list of mutations which can be purchased at your local gene shop. Example for the first list would be improvements to your cognitive abilities and health in general. On the second list should be mutations, which are mainly concerned with aesthetics (change skin color, shape of ears, etc.). Ultimately there needs to be a broad political discussion which mutation belongs on which list - and as societies evolve those two lists will change.
I'm afraid we will "cope" the way it happened before: the stronger/wealthier wealthier/healthier will control the rest. But this time it will be even more subtle. To some extent it already happens.
We allow individuals to change their gender with what they identify. What if a dwarf identifies with being an average size? Or I identify with being the stature of Tony Robins?
