We spent a week in Singapore and focused almost entirely on eating lots of hawker food. It was an incredible trip and the city is so easy to navigate.
For those who don't travel overseas a lot, Singapore is very accessible. English is one of the official languages, the locals are friendly and helpful, and the city has many of the same creature comforts we're accustomed to at home (e.g., great WiFi, AC, and clean bathrooms). It was probably one of the easiest int'l family vacations we've taken!