The daughter-in-law, posting on the U.K.-based site under the handle Wafflerthewonderdog, explained that she and her husband “live abroad” and the twentysomething couple—her husband’s niece and boyfriend—wanted to stay at their home for a week.

The mother-in-law is said to have told her: “They just really need a relaxing, chilled holiday … at your house.”

Both the niece and her boyfriend live with their parents and “are stressed as they keep changing jobs,” the original poster added. “They’re just wanting to lounge around and not do much,” according to the woman’s mother-in-law.

The daughter-in-law said that was “great,” but “we have busy lives with our wonderful but exhausting 4 year old… [Am I being unreasonable] in thinking it’s kind of rude to just want to come to ours to just lounge?”

According to a January 2022 study in the journal Evolutionary Psychological Science, both men and women in the U.S. “reported more conflict with mothers-in-law than with mothers, and mothers reported more conflict with their daughters-in-law than with their daughters.”

In the Mumsnet post, which Newsweek has not verified independently, the daughter-in-law said the niece had messaged her husband to say “they were thinking of coming over, was that ok…[can’t] exactly say no…”

The woman described the niece and her boyfriend as “pleasant enough,” but “[very] different to how we were in our twenties, not independent at all. [They] seem really immature to us.”

Several users on Mumsnet sided with the original poster, suggesting that she “ignore” what her mother-in-law had said.

User Crumpleton said: “I’d have told MIL [mother-in-law] if they wanted a holiday where they can relax and just chill they should have booked a hotel.”

Goldbar agreed, posting: “If they want a ‘relaxing, chilled holiday’, they need to go somewhere without a resident 4 year old.”

TokyoTen said: “I’d just ignore MIL! I’d also ensure I don’t run myself ragged waiting on them! Chilling doesn’t mean they get to sit there and be waited on. An airy ’there’s the fridge, breakfast stuff here’ etc is fine!”

User maranella said the woman was not being unreasonable, adding: “I wouldn’t want two immature 20-somethings staying with me when all they wanted to do was relax either. As a guest, you’re duty bound to not be a burden…If all you want is to lie around and relax you pay for a f***ing hotel!”

Other Mumsnet users were more circumspect. Shinyandnew1 said: “What she said isn’t odd in itself but I can’t say I’d want an extra two house guests who wanted to lounge around my house for a week when I had young kids!..”

User CruCru pointed out: “There’s nothing wrong with wanting a relaxed, chilled holiday … except that it isn’t usually relaxing to stay with a young family (unless your house is utterly massive). Feed them breakfast and dinner and tell them to amuse themselves in the daytime.”