By wearing this, of course you’re not saying this is what you would wear to work. Presumably you get a uniform or wear clothes that the children you are nursing feel comfortable seeing you in and that are practical for doing what can be a pretty physical job.
At an interview, you often don’t wear what you’d wear to do the job. It’s always right to be smart and professional in appearance at interview, even if the job requires jeans or a very specific suit, or a set of scrubs.
Colour or pattern might be very you. You don’t need to be anonymous and neutral. Colour and pattern is okay at an interview if it’s worn correctly. That’s why the plain black cardigan or jacket would be good with this dress, along with formal shoes and black tights and handbag. I think if there is netting it should be removed. You don’t want to sit down and the skirt puffs out, but rather to pull it down and round your legs.
I think most people who carry out a lot of interviews would say this is fine if worn appropriately, and especially those who are able to think about workplaces being a wide range and not just in terms of a very narrow field which might have very particular requirements. Those who do lots of interviews will notice something terribly inappropriate and note it, but the vast majority of clothes will be considered fine and not swing the interview for or against because the interviewer is focused on the answers and the overall sense of that person. Experienced interviewers know that good candidates come in a. Range of looks and personality types....they are not totally closed minded and switched off by things like a patterned dress.
Those who think such a dress would be a very definite no-no, probably haven’t carried out a wide range of interviews and come to know what matters and makes a good candidate and which things are largely irrelevant, as long as within standard boundaries. So for clothes, it’s no to a very short mini skirt or lots of cleavage or dirty clothes. A smart dress with some colour or pattern which reflects you and can be worn smartly and professionally is fine.