Should i intervene with my sisters parting and drug use

Question

so my older sister is 19 and a big partier shes had her share of alcohol, shrooms, pills, and weed which i don't see a problem with considering I'm a fellow pot head. but recently i found out that she has gotten into blow (coke cocaine what ever you want to call it). I'm not sure what to do shes only done it a couple times while parting with friends. i don't see her getting addicted but what if she does and things get bad. id feel so guilty if i could have stopped it from the beginning but also i don't want my sister to feel like I'm trying to run her live that **** annoys me.... so heres the question what do i do.

Answer 1

i dont think you should be the one to intervene

let someone older do that,like your parents or someone your sister really listens to and has an influence on her

or do the mean trhing by stealing all of her money secretly so that she wont have money to buy anything