I will soon be visiting Buenos Aires with my family, including adult sons and teenage daughters. I am interested in visiting towns I lived in years ago, like Merlo, Moreno, Escobar, Quilmes, Ciudad Evita. Back in the day we took the train in and out of the city. Locals are now telling me that the trains are not safe. Any opinions on this subject? What would be the safest way to get out to these places? Right now a rental car for six is looking a little pricey. I would appreciate any direction available in this. By the way, we are staying in Recoletta for two weeks.