When teens gamble at that early stage of their life it could be very dangerous for them as it can affect how they reason towards making money. Their perspective would be that of a shortcut to making money and would falsely be thinking that any form of patience towards looking for money could be a waste of time, because if we carefully look at it, this is the mentality of many gamblers who started gambling at an early stage in life when they weren't yet in the maturity age.
Gambling is one of the sector that needs to be studied well to stop underage from taking part in the activities. Gambling companies do try to stop or limit that, but sometimes even the adults in the society also helps this teenagers to get access to gambling at early stage which makes the effort of this adults turn into waste of time and effort.
The way an adult sees gambling as is never the way a child sees it. There is a distinct difference between them. As an adult wins big to settle his lifestyle more and engage into some profitable investments, a child will most likely think of how to feel among in the society and make all the girls and boys sees him of high standards. There is no reason to why gambling should be allowed for underaged, the cons are bigger than the pros.