A few years ago, George Lewis was driving back from performing in a comedy club when he realized he had to change his life.

He had played the same club several years earlier, also for just a few minutes and also for little more than gas money. Both times, he did what he had to do. He showed up. He made the audience laugh.

Now, though, he was a parent. He needed a more stable income, and his material felt tired. Yet the thing that filled his days — looking after his children — was a no-go for standup, older comics told him: a sure way to get pigeonholed.

“It was like: ‘Maybe when you have kids, don’t mention that you’ve got kids,’” he said, recalling their earlier advice.

“Obviously,” he continued, “now I realize it’s quite the opposite.”

In the years since that night, Mr. Lewis, now 37, has become a bard of British parenting comedy. He’s on his first tour as a headliner, and his shows keep selling out. His route to success began after the pandemic, when he began posting short online videos that gently mocked (and commiserated with) his fellow British millennial parents.

In some sketches, Mr. Lewis acts the harried grown-up. In the clip below, he’s trying to adhere to a nap schedule while driving. There’s an unseen toddler in the back who mustn’t be allowed to fall asleep. As they approach home, he gets increasingly desperate.