The TLC stars recently visited Washington, D.C., with their three kids.

Zach and Tori Roloff are no strangers to online critics. After appearing on TLC’s Little People, Big World as a couple since Season 10 (and Zach since Season 1), they’ve practically become experts at navigating trolls. However, fans of the reality stars recently stepped in to defend them against critics of their family vacation photos.

On Thursday, June 27, Tori took to Instagram to share photos from a trip she and Zach took with their three children, Jackson, 7, Lilah, 4, and Josiah, 2.

“DC, you’re a vibe. 💫🇺🇸,” she captioned a carousel of pictures from Washington, D.C. “I promise I’m here too. Just behind the @canonusa 🤪.”

Zach’s mom, Amy Roloff, wrote, “Oh I wish I would have made the trip now. Another time I hope.”

Bringing Up Bates star Carlin Bates declared, “So sweet 🥰.”

In the comments, a handful of Instagram users also commented on Jackson and Lilah’s bowed legs, a common symptom of achondroplasia dwarfism—which they, Josiah and Zach were all born with.

“Poor kid. Is there any treatment for his condition?😟,” one person wrote.

To that, a fan snarked, “So glad you caught this. I am sure his parents are so grateful that you pointed it out. I am sure his doctors are truly thankful for the Instagram docs.”

Another critic pointed out, “Their poor little legs. It looks painful.”

Several fans defended Zach and Tori, with one writing, “Are you serious? They are on top of the development with their kids. Jackson has had surgery. I’m sure if they were in pain they wouldn’t be walking and the parents would know.”

Another Instagram user replied, “As someone with a disability just because something looks painful doesn’t mean it is. Zach and Tori are great parents. They will take of their legs when/if it becomes an issue.🙄.”

Meanwhile, someone else echoed in the comments, “They are on top of everything when it comes to their beautiful children so please don’t assume that just because they have small legs n slightly bent. They are amazing parents. I have followed them since before they got married.”

Unsolicited comments about their kids’ appearances must be difficult for Zach and Tori despite their many years in the spotlight. But at least fans are willing to step in when critics cross a line.

Next: Why Little People, Big World‘s Zach Roloff Spent Son’s 2nd Birthday in Urgent Care