Social media apps such as snapchat, Instagram, facebook and many more, have restrictions to prevent harm in the place of social media. Firstly there are age limits, the age limits will change for all different social Medias. For snapchat you have to be 17+, for Instagram 12+, facebook 13+ and many others. All social medias have to have a terms and conditions part that you must read and agree with. If you do not agree then you are not allowed to use that app. When you sign up for a social media if you put your number or email in it will then send you a verification code that you must then type in. This is to make sure that it is you an you are not trying to be someone else or steel their email or number.