As we get older, we used to be more responsible as we needed to handle more things. During the young age, even if we have commitments, it doesn't look like a big thing. After years, even a small commitment looks like a big thing, and we start the plan for the execution much earlier, and we feel like a great achievement when the same gets accomplished. During our young age, the same could've been done on the go, and we could've never minded it being a big thing. At some point, being selfish is a must. If not, this is going to be difficult to survive in the fast-moving world.