Families need time to adjust as well. You can't expect an entire familiy to make drastic changes to their lives because one member walks in the door and announces "I have diabetes and things have to change around here starting now!" Ever made an annoucement like that to YOUR family? Let me know how it worked out.
Another consideration is cost. Anybody tried to pay for test strips, insulin, or medications lately? Not everyone has insurance, medicare, or medicaid. Most insurance requires a copay, some of them are pretty stiff. How would you like for some doctor making a couple of hundred large per year to tell you that starting today, you have to cough up maybe 300 dollars a more each month and if you don't your insurance will no longer cover you?
Some people are seeing this as a black and white, do it or suffer the consequences type of issue. I for one don't see how you can expect to dictate to a person that they must make drastic changes in their lifestyle, their family's life, their finances, and expect them to be a good little robot, go forth and obey without question.