Being a dad is TOO easy?

What am I missing? Me and my wife are both baffled on how easy it is to care for our 5 month old. Why did everyone scald us we were having a child too soon (25M and 27F) and that it would put an end to our fun?

It made it even more fun. I took time off work to spend even more days with my tiny family because of how fun it is, is this normal?

Changing diapers, feeding, putting him to sleep isn't that bad, washing dishes is way more of a difficulty than these three combined.

Going places (making sure we have everything for him in the backpack) or having some alone time for some, as I like to call it, family-expanding moments is harder sure but is that all? He does sometimes make it difficult such as takes more time to fall asleep or throws bigger tantrums but it's, again, not that challenging. Is it going to get worse? What is it you find most hard about having a newborn? Do I just have a very chill kid? Is this normal? If I'm not missing anything we're going for another!

P.S.: Sorry for bad English. Not my native language.