Yes, I know women with children (a few have 4, 5, and even 6, but most have 2 or 3, several have 1) who are in their early 50s to late 60s, and they could pass for 7-8 years younger. And I know some women who have never had children who look 7-8 years older. It's not a given that women who don't have children will look 45 at 60, and women who do have children will look like they're 63 when they're 49. This is a myth often perpetuated by childfree women.
Look at Demi Moore how amazing she looks, and also The Kardashians/Jenners, all look great, (nearly all have kids.) Marie Osmond, Kylie's sister Dannii, Kim Wilde, Gwyneth Paltrow, Jane Seymour, Reese Witherspoon, Cindy Crawford, Kate Moss, Uma Thurman, Jane Fonda, Meryl Streep, Tilda Swinton, the list is endless of women who have children who look younger than their age. I know plenty in real life too...