RIP Sites contain adult content and as such are strictly intended to only be used by adults of over 18 (or the age of majority in your jurisdiction).
You can use these measures to prevent your kids from accidentally stumbling upon our sites:
1) Activate safe mode in search engines:
You can also use http://www.kiddle.co, a safe visual search engine for kids.
2) Windows 10 Family Features: https://account.microsoft.com/family
3) Control the Apps in your Devices: http://www.techradar.com/news/mobile-computing/tablets/how-to-make-android-child-friendly-1045708
4) Use these sites to filter adult content: