People will argue this infringes on their freedom to make unhealthy life choices. I agree, you cannot force someone to make healthy life choices, only use pricing signals to encourage it. Tax them more to recoup the costs, and let them make the choices they would like (unhealthy foods, smoking, etc). I also agree that more regulation is required (States in Mexico intend to ban kids from purchasing junk food because childhood obesity there is skyrocketing [1]).

[1] https://www.npr.org/2020/09/14/912029399/we-had-to-take-acti... (NPR: 'We Had To Take Action': States In Mexico Move To Ban Junk Food Sales To Minors)