Antibiotics and other prescription medications are more often prescribed to older folks, so the increase should be seen in those populations, not primarily more in younger populations. It is unlikely that antibiotics or other similar medical interventions are responsible for the phenomenon seen in the op article.
Also, as a prescriber, I do warn my patients of the dangers of taking antibiotics willy nilly. ๐คท๐ปโโ๏ธ
For anyone worried about this, you can ask for a bite block.