A shotgun will be fine. The most important thing is get use to it, practice more than just once or twice, be familiar with the total operation, if you are a first time owner and don't when the time comes to really need it you will be more likely to have issues regardless the type weapon. I think the pump shotgun idea from some people has a lot to do with easier show a new owner the understanding of function and not having a round chambered to feel more comfortable about safety. Some people don't understand the auto function and quickly get scared of the type unless they practice and get used to it. So shotgun is king for home defense for new and novice gun owners was born.