My mother allowed my father do all sorts of horrible things to me (their son)...she didn't have any addictions either (my father did). People, especially parents, tend to blur the lines between right and wrong. Sometimes it's just not logical and you'll waste the valuable moments of your life trying to figure them out. It's not worth it. Sounds to me like she is just as sick as her son, but by a different illness... In the end though, it's your husband making the choices of whether to buy them or not. The consequences fall on him. We can look at other people to blame...but the reality is that your husband is choosing unwisely.