Hi cozy!
I’m Australian, Perth born and bred and I also lived in Scarborough for a long time. That area has changed a lot in the last few years, there’s been a massive redevelopment ongoing and the once sleepy little suburb has got a bit of a Gold Coast vibe going on now. We moved east to the Inglewood/mt lawley area a few years ago and never looked back. Just personal preference though, if you want to live near the beach then Scarborough is probably the most accessible, money wise. City beach would be up there with some of the most expensive suburbs around. You could also look at doubleview or wembley downs - still very close to the beach but slightly less pricey.
As far as things to take, I imagine we have most of the creature comforts of home here. Do not buy/rent a house in summer without air conditioning, you will sorely regret it. Agree with PP, it gets really cold here in winter (it got down to 2 degrees a couple of weeks ago).
Around the Scarborough area, there are two large shopping centres - Westfield innaloo and karrinyup shopping centre - between them you’ll find all the major stores (Kmart, big w, target, Myer).
I can highly recommend the coffee at the Brighton road market (amazing gourmet goodies galore there too), the wild fig cafe, drift kitchen and Doric st cafe.
To keep up with events/goings on, I recommend you follow the urbanlist Perth Facebook page, handy for restaurant reviews, festivals etc. Also have a look at the evenbrite and weekendnotes websites for events. Sunset wine and brews in city beach is a great yearly event, for example.
As for meeting people, it would depend what you’re into. Most local pubs have little events through the week - quiz nights, wine tastings, comedy nights etc. The live music scene here is also pretty good, depending on your tastes. Sport here (and in particular AFL) is religion. It’s not my cup of tea but be prepared for it to be shoved down your throat at every turn 😂. There’s several great golf clubs around too if that’s your thing.
Scarborough falls under the city of stirling, their website will also have listings of local events. All the British pubs will have showings of the EPL also.
I could go on and on! Feel free to ask any questions, happy to answer 