Does anyone feel like autism is suddenly being diagnosed late in other kids and adults around them?

I have two sons, both level 1, and one level 3 daughter. All of them were diagnosed as toddlers and over 10 now.

I have been just realizing now that I know a lot more autistic people than neurotypicals. Just a few years ago it was just my kids but now it's my niece and my three nephews (both on my brothers side and my sisters), all diagnosed after 10. Even a friend I know from my team in high school has 3 teens and two of them are newly diagnosed autistic. It's not just kids because my SIL was recently diagnosed in her 30s and it made me question some things.

I'm wondering if it's just me who is noticing this or is anyone else in this same boat.