Some may see that as a drawback if they want to keep their personal profile totally separate from marketing activities. Still, you can't have everything ...
If this aspect of them doesn't bother you, you can turn it to your advantage. That's because you can make lots of personal connections with other local Facebook users. Once you've done that and built up a bit of rapport and trust with them, you can then suggest that they like other pages you have. Given that they know you already, they're much more likely to like them also as a result.
You can find locally oriented Facebook groups by using the search function. Just use keywords like "Perth business" and some will come up. When you've joined a few of these, Facebook will start suggesting others anyway.
Some of these groups are a bit spammy of course. But a lot of them are not, and have lots of engaged local members.
As with all groups and communities on social media, the key is to keep returning and engage thoughtfully and sincerely. Not only will people get to know you, they'll get a sense of who you are as well. So, the more you do this, the more likely you are to get people looking at and liking the Facebook page you are promoting -- as well as your website if you choose to include the URL in your posts.