I think that anything could become an idol, if you let it. Whether it's erotic literature, porn, alcohol, money, etc...anything can become an idol and take over your whole life, if you let it. Anything can serve as a distraction to our relationships with others too if we let it. So, maybe some habits aren't terrible if they're occasional, but is occasionally sinning acceptable to God? lol
Hmmm....
We shouldn't strive for perfection, but we should strive to ''go and sin no more.'' (as Jesus said) Not always easy, for sure.