When we were considering the realities of a move abroad in 2008, we traveled with daughter #1, who was 3 months old at that time to Montevideo, Uruguay and Buenos Aires, Argentina. If we hadn't explored our potential move cities in advance, we probably would not have made the move abroad.
We CANNOT imagine and DO NOT recommend moving abroad, especially with children, without scoping out the location(s) in person first.
It took us a year after that first exploratory trip to put our ducks in a row and plan our move to South America. We moved in March 2009. This was not a quick decision and we'd been contemplating our options for years before.
Like many of our readers, we had completed a ton of online research to even narrow the locations down to Uruguay or Argentina in the first place. Then, traveling with an infant during our scouting trip was simple (at least compared to traveling with a toddler or preschooler!) We wandered and walked for hours, checking out neighborhoods, talking to people, gathering info and heading out at all hours of the day and night. Late night South American dinners are easy-peasy with a sleeping baby at your side!
We receive so many questions about the places where we have lived and we are happy to help, but we can't make the decision for you and you shouldn't rely on ANYONE - let alone a stranger- to sway your decision. You need to see a place in person to really know if that location is right for you.
We recently learned of a young family who had moved to Montevideo sight unseen only to find that they hated it and left after the first week. They are now very comfortably settled in a gorgeous coastal town in Argentina. Their initial experience sounded quite traumatic and although all signs pointed to Uruguay being the perfect fit for them, it was not.
The day-to-day realities of a city could me much, much different for you based on any number of factors: ability to blend in, language skills, your cultural background, expectations, socio-economic level, etc..
Please consider a scouting trip (or two) to any foreign location you may consider living. Your scouting trip, along with all the online information and contacts that you can gather will help you form an accurate picture of a place. Don't forgo this crucial step in the planning process.
To learn more of the specific steps in planning a scouting trip, check out this very informative post on Moving Abroad With Children.