We are very definitely not "trying to restrict the spread to prevent new variants which may well affect much younger people or be vaccine resistant" because there is absolutely not a shred of science in that statement. New strains of any virus occur with regularity, and restricting the spread of a virus has absolutely NO impact on the mutation rate. All living organisms evolve. The life span of a virus means that the evolve quickly compared to more complex life forms. Variations will occur no matter what you do.
@Moondust001 why post things that are patently untrue? Either you know you're spreading misinformation, or you're just saying things with certainty when you don't understand what you're talking about
the mutation rate of a virus is directly linked to rate of transmission. Genetic material only has the chance to mutate when it is being replicated, as this is when mistakes can occur. The higher the transmission, the higher the mutation rate, the higher the chance of emergence of new strains.
This is why we haven't heard about new strains from places with good control over the pandemic like NZ and Aus
There is no evidence that any strain in becoming vaccine resistant - that is hysterical speculation.
Again, this incorrect. There is evidence that some strains have a level of resistance against previous immunity (from vaccines or infection), and it something that we need to be cautious of. It's certainly not "hysterical speculation"