How come some people are still refusing the Covid jab?

It doesn't seem to matter what the experts or governments say, there are still people around the world who believe that it's either against their human rights and privacy and freedom of expression to get the Covid vaccination or somehow it's all a giant conspiracy to control populations. In this day and age when there is so much information available on the internet for all to see and read, it seems incredible that anyone can seriously still think that having a vaccination jab is not the right thing to do. The world will not be safe until everyone has been vaccinated but it looks unlikely that this is going to be achieved. There are too many no jabbers around. These are presumably the same people who believe that human beings have never landed on the moon or that 9/11 was carried out by the CIA or that 9/11 never actually happened. I'm fully aware that there are some nutty people on this planet and it may not be their fault for whatever reason. But good health is the foundation of life on earth and right now with this pandemic refusing to go away, every man woman and child, whether mad in the head or not, should be vaccinated. In the UK today it's a big celebration moment because the ban on so many things has now been lifted, including international travel, eating in restaurants, going to the cinema and hugging grandchildren. Yet despite a vigorously successful vaccination programme in the UK, government ministers are still hedging their bets and warning people to be ultra cautious: no flying off unless it's essential, no face-to-face hugs, six only inside a house etc etc. But surely if you're vaccinated twice then life should be allowed to return to normal without Boris Johnson and co popping up every minute saying "no no no, be careful, be cautious, don't do that or that". Actually lockdown or some form of it has been going on for so long that for many people I suspect there will be a large degree of hesitation anyway. In some ways we are all suffering from lockdown syndrome and can't shake it off.