People who find wearing a mask oppression must have led very priviledged lives
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Also wearing masks is the least of children's problems at the moment. Calling it abuse is frankly a bad joke. There's so many worse things than being mildly inconvenienced while going out, going on in so many households, manipulation, emotional abuse, insults, invalidation, sexual abuse, beatings, families in poverty breeding children like rabbits who are completely unfit for giving them any quality of life, infant circumcision, being used merely for parents to try to live vicariously through them for the things they never could experiencie. Child trafficking, making Nike shoes for pennies, no access to clean water and food, the list could go on forever, if wearing a mask of all things is what broke the camel's back for you then you have been blind to the most of the world troubles, I'm going to guess from the comfort of a reasonably well off white household where money has never been a concern.
The irony of this is OP is living in a safety bubble completely detached from the daily problems people actually experience.
If a world where "children wear masks for the a marginal increase in safety for the adults" is not worth living is your criteria then clearly this world is not worth living in at all as there's hundreds of much more vile things going on daily. On a micro and macro scale.