Woukd you split the bill on first date?

Where i come from, we split. We're both there having a good time, its only fair to split. Even more so if you know its not gonna work out, pay our share and say our goodbyes. No harm no faul.

Had a date the night before, although we had decent conversations, we both knew it won't go any further. Yet she expected me to pay for everything (for context, she offered to meet first, picked the location, and we had starters, mains, deserts, and whole bunch of drinks).

Spoke to a colleague today who shared about a time that her date brought 3 friends to a fancy restaurant, and he was left with a very large bill

Is this normal in Perth?