How to download YouTube videos for kids?

There are lots of online resources where your kids can watch videos. Unfortunately, watching films online isn't always good: the internet can lag, besides, you can’t be sure it is the 'made for kids' content that they're watching. Saving files beforehand is a way out. YouTube has a big collection of entertaining and educational materials for any age. You can select and download only what you like. All files can be easily transferred to your kid’s tablet or phone with either OS afterwards.