Libraries should be quiet but I strongly disagree that they shouldn’t cater for kids, libraries are great for kids I take my toddler to our library fairly often and she’s learn to love books because of it.
The situation is just a shitty parent not an issue with libraries catering for kids.
I’ve tried so many different search engines over the last year to try getting rid of Google and ecosia seems pretty good, also I still use yandex pretty often