Since bitcoin is just a money why does bitcoin wallet sites has an age limit of 18 years old before creating one?? Does having a money has an age limit?? And since online sites can't even detect people who's 18 below , why do they even bothered it ??
In most cases, you have to agree to terms of service but in most countries, your agreement is not binding under the age of 18. Also, in most countries, youths are not held to law in the same manner as adults so these online companies are protecting themselves with this requirement. It pertains to legal recourse.