If you are going to download Snapchat you need to be twelve or over. This is implemented on purpose because at twelve you should know how to stay safe.
There will always be a report button on pretty much any website or social media platform. Always use these.
You may come across trolls on Snapchat. Trolls are people who try to start quarrels (arguments) with random people on the internet by taking the mickey or completely being rude. Try to ignore these.
Never share private information about yourself online or anywhere to ANYONE around you your information is supposed to be kept to yourself that's why its called private.
Never message people you don't know. This could cause a lot of problems mainly the ones we've spoke about.
The creator of this guide has not included tools