That’s a very valid point and I am more than happy to answer this.
Most Nannies who work for an average family , work decent hours, have a life and/or family of their own, go back to their own home at the end of their shift, see their kids/partner/husband/wife daily, and overall have a balanced life.
That’s not our case. Most of us work a very minimum of 12 hours a day 6 days a week, many more work 24/6 or 24/7 (that’s my case), the great majority of us are live-in Nannies, which means no expenses but also mean that once we step into the house we don’t leave nor have our own life until the end of our shift. It’s living with those people all the time, having no privacy, often no or very little breaks, not necessarily eating what you want or when you want to, often not being able to wear the clothes you wish to wear in some cases you are also not allowed to use whatever body wash you want and have to abide by their preferences. We LIVE for those people, we don’t see our families for weeks or months, nor our house. Most Nannies who stay in families for years at this level do so because they gave up on their own fertility and ability to have their own or be there for family to do so (many of the nanny I work with who are in their 50’s and are long-term Nannies don’t have kids and never got married and those who are married see their spouse extremely sporadically.)
So many Nannies only last a few years (if the work conditions are good and the family is nice) or a few months (if the conditions are bad), because we give up so much of ourselves that it comes a point where we either need a break or can’t sustain living in an environment that’s not healthy for years.
Personally it’s more simple. I specialize in babies, especially newborns so usually do 24/6 or 24/7 contract for the first 3 months and then take a break and then start afresh with a new baby/family. Often I have stayed longer for the right families, up to a year or so. But currently I am at a stage where I am willing to work a lot for short periods of time but do want my own life and so wouldn’t stay 10 years in a 24/6 positions nor a 12/6 one as it’s just not sustainable with having your own quality of life.
Me having worked with lots of families doesn’t impact my CV because it’s what’s expected of someone like me (based on what I do and the services I provide) plus I only have very good recommendations from all the families I work for so if anything it’s a plus rather than a minus, and no family take me on with the expectation I’ll stay 10 years because I don’t do older kids and I am clear from the get go that I have no interest working so many hours full-time and long-term, and most absolutely understand, because those people would be the least likely to accept to work 24h a day 6 or 7 days a week and not have a life for what they pay me.