I got some idea while I was running. Why cannot we sustain things that we want to create as habit? We get bored easily. That’s how our brains were made. However, kids are hard to get bored as easily as adults. That’s why kid repeat same joke or play all day long. Children learn new things faster than us because kids has no enough experience in life and everything is amazing to them.
On the other hand, we had lots of experience so far. We got some pattern from all these things. We can get gored easily because we knew similar pattern from it. That’s why we hard to create good habit, because we cannot stand to do something over and over. We know everyday routine is important, especially exercise such as running.