If I lock my gate so only household members are allowed in, are services (mail men, newspaper delivery, pizza, etc.) still able to get in? Or do I need to have my mail box and other things outside my gate? I mainly want a locked gate because I'm finding it very annoying how random sims are wondering onto my lot and taking a very long time to leave. Since they are just on my lot and not in my house, I don't have the option to ask them to leave.
Sorry if this is a stupid question, but this is my first time playing and only been playing for maybe two weeks, so there's still a ton I don't know.