I bit my lip. “Maybe we should move back to Perth and buy a house,” I suggested to Dave. We’d been travelling for 18 months and had made our first stop home. Seeing all our friends around us settled into their recently-purchased houses, many married and with babies, we were wondering whether we were doing the right thing. We love to travel and we are the happiest when we’re on the road, but seeing everyone take a more traditional (and…