That seems impossible to know. As they now say the booster should be given six months or more after the regular second shot, we are months away from guessing whether people have refused to get the booster versus those who have not gotten the booster yet.
My wife and I are inclined not to get the booster. As I posted in a comment on another article,
I am disturbed with the booster shots now being given exclusively at pharmacies. I believe there may not be enough due diligence and professional acumen at many pharmacies to properly give these very specific shots across the country.My wife especially has been adamant about not getting the booster because of the obfuscation and lies up until now.
There appears to be one standalone Doctor's practice that provides the booster in our area, but the Doctors cater to the Japanese community (Kuraoka Clinic). That should not be a factor with the Covid-19 vaccine, so we may talk ourselves into doing it in the next few months. After all, the Japanese are known to strictly follow policies and precepts in all things.
In my state distribution of vaccine shots are almost entirely given at pharmacies. It appears to have worked quite well considering the logistical nightmare it could have been.