A journey with ordinary story

I have a couple of experiences taking care of my niece (2 years and 6 months old ) and nephew (4 yrs 10 months old) while my sister and her husband were away. Of course I was not alone. Actually their intention was to leave them with my parents, but it just happened that I was with my parents as well then.  This might be an untraditional thoughts. People said I might feel differently if I have my own child, one born from my womb. Someones said to me, "It's indescribable feeling. Yes, you'll have not enough sleep, endless chores, demands of attention, little time for yourself, but it will all worth it". Really? Knowing me, I feel like it's not for me. It's also not something I can just try, because when it happened, you have to commit for it. I don't want to be unfair to the child. It's not a responsibility that I'm willing to take. That's why I despise parents who neglect their child, and worse even abuse this tender human being