Is there any scientific explanation why unhealthy habits (like drinking, smoking, drugs…) are not only socially

Question: Is there any scientific explanation why unhealthy habits (like drinking, smoking, drugs...) are not only socially accepted, but seen as “cool”?
- Keywords:
  drugs,
  smoking
Asked by anon-229178 to Jolel, Emily on 21 Nov 2019.
- Jolel Miah answered on 21 Nov 2019:
  
  i think yes, although attitudes are changing, there is still a perception to engage in risky behaviours like taking cocaine is seen as part of identity but as you get older, people realise its unhealthy but by then it is highly addicted and therefore harder to change.

Question: Is there any scientific explanation why unhealthy habits (like drinking, smoking, drugs...) are not only socially accepted, but seen as “cool”?