Pauline: given the situation of your maid, I would rather to have help from someone in the family instead. I would never entrust my kids to any maid even it's a short distance. You will never know when they are not happy, they would do silly things. ;-(
And if your maid has chance to meet other maids at playgroup is a no no. If I was you, I will find other solution.
My maid seldom go out, even going to church (she is Christian), we also don't make her expectation go high. One time at church, one maid approached her and talked together. I was super upset coz it was just when the service was ended, and both of them didn't move their asses. I told my maid out loud: let's go home. Then I even told other maid that pls never come and talk to my maid otherwise I will talk to your employer. ;-) I know I am very cruel but I also need to re-enforce my message to my maid, don't ever break my rules. Actually, my maid is very good. I have her 6 months to get used to things at my home (she did everything wrong, but I see her has a good attitude and is willing to learn and I was really patient with her).
At times, we also need to be in their situation, being in the new home and with new surrounding, new people, they also need time to adjust. I talked to my maid and understand where to come from. We don't let her to use washing machine (if we want to wash our clothes, we will set the machine by ourselves), and she is not allowed to use microwave or oven. It's also abt her safety coz maids are generally forgetful. We also remind ourselves, if anyone if us a task, do we sure that we can do it 100% and make others happy? and because of their education and background, thats why they have to go out and be a maid.
Even my maid is very gentle to my girl, but I myself never let her touch my bb. Her job is only to do cleaning and a bit of cooking.
When you employ a maid to look after your bb, also consider that her time will be very tight. Just imagine we as a full time mum, at times, our hands are tight too. So is our maid. Do give them time and chance and guide and supervise them all the way. Even how good your maid is, you still need to keep an eye on her.
;-)