The relevant question is not whether droplets can bypass a mask or not.
The specific question that is relevant is, given droplet exposure containing COVID, are there any differences in infection rates for people wearing a mask (use different levels of mask protection for comprehensiveness, from bandana to N95) versus without a mask?
A mask can be only 10-20% effective but still show a clinically relevant result. If you think about the effectiveness of washing your hands to prevent getting sick, it is probably a low reduction but it is still highly recommended.
People do not argue against hand washing just because the virus can still get into your system through other means. They support hand washing despite its imperfections.
The specific question that is relevant is, given droplet exposure containing COVID, are there any differences in infection rates for people wearing a mask (use different levels of mask protection for comprehensiveness, from bandana to N95) versus without a mask?
A mask can be only 10-20% effective but still show a clinically relevant result. If you think about the effectiveness of washing your hands to prevent getting sick, it is probably a low reduction but it is still highly recommended.
People do not argue against hand washing just because the virus can still get into your system through other means. They support hand washing despite its imperfections.