Who is 99 banana's and maddog 20/20 marketed to?
Also the cultural aspect is just different. It is generally harder for kids to get alcohol in my experience and also you (usually) don’t carry a bottle of 99 bananas and swig it every few minutes out in public.
Perhaps most importantly is that alcohol doesn’t contain nicotine. People get addicted to alcohol but not in the same way people get addicted to nicotine.