Other worried mums are concerned the colourful garments are bad for the environment, particularly because children only tend to wear them a few times each year and outgrow them. Some Christmas jumpers cost as much as £30 at popular high street stores.
And writing on Mumsnet, parents united to share their concern at the tradition in schools.
One wrote: “DC2 (dear child) has a couple of little classmates with difficult home lives, one in particular without much money. There are some Christmas jumper days coming up and I have been thinking about how tough it must be to always be the child with no jumper.
“I know as children grow up you can’t avoid the inequalities but it would be great if we could at least stop it being an issue at primary school. And of course there are the families who buy jumpers when they can’t really afford them.”
Others waded into the debate, Chronicle Live reports.
One mum commented: “Yes I agree, they want you to go out and buy a jumper and then to donate to the school too. We have four kids and are on low income.
“Last week I paid £18 in school Xmas activities and there’s more to come. It’s free to anyone on benefits but we get just over the threshold and it’s a struggle at this time of year.”
Another added: “Not to mention its terrible for the environment. I have to buy mine Xmas jumpers because I don’t want them to be the odd one out, but with Xmas coming I can’t really afford to buy jumpers that they can’t wear past December. Hoping to get away with a generic winter jumper for them in a size up then they can wear it next year too.”
A third said: “I bought mine second hand to avoid that issue. £5 for the jumper and then I’ll sell it on again next year. But yes, I do feel for the families that can’t afford too. It must just add to the pressure.”
And one mum wrote: “Totally agree. Awful for the environment (even if sold on second hand they are still such a rarely worn item of clothing) and awful to put extra financial pressure on people at Christmas.”
One parent spoke about the added costs at Christmas time.
She said: “In our DC (dear child) primary in December we have to provide a nativity costume, a Christmas jumper for Christmas jumper day, a Christmas outfit for class party, £2 each ‘donation’ per child to enter the school fete in the hall plus ‘spending money’, this is during school time.”
Some schools run swap shops or places where families can donate old jumpers to be reused the following year.