Just because something is difficult does not mean that it shouldn't be done. For instance, before Prohibition, there was no national minimum age to drink alcohol in the United States, and most states did not enforce a drinking age at all. It was not until after Prohibition that more states began enforcing a drinking age.
Setting and enforcing a drinking age required massive changes in U.S. society. Just because this transition was difficult does not mean that it was not worth it, as it's had many health and safety benefits. Thus, just because something may require many changes does not mean that we should not pursue it.