Pokémon Go has a bit of an endgame problem right now. While the early stages are filled with a seemingly overwhelming number of things to do (catch this Pokémon, use these items, take this gym etc.), the truth is that there are few worthwhile activities in the game once you reach a certain point. As it turns out, eggs are the key to maintaining interest in Pokémon Go right now. Eggs may seem like a pointless distraction to beginners but nothing could be further from the truth. Hatching eggs is arguably the single most worthwhile use of your time in Pokémon Go, even more so than battling it out with other teams for gyms or catching Pokémon in the wild. Here’s why:
7. It’s Essential To Leveling Up At Higher Levels
Once you reach a high enough level in Pokémon Go — around level 20 or so — you pretty much hit a wall, as it suddenly takes a ridiculous amount of xp to gain a single level. Higher xp thresholds for higher levels is nothing new in games like this, but since you’re still getting the same amount of xp for catching Pokémon and other activities as you were at lower levels, the progression stalls out considerably at this stage, even if you’re still putting in a ton of time and effort. While hatching eggs still doesn’t net you enough xp to put a serious dent in your progress bar, hatching them at a regular pace definitely helps you reach higher levels faster, as their xp rewards are significantly higher than what you receive for catching wild Pokémon.
https://www.vg247.com/2016/07/18/pokemon-go-tips-for-gaining-xp-and-leveling-up-fast/ Source: vg247.com