when they reaches a couple months old, diaper is not an issue any more. They got used to wearing dirty diapers. It's parents' job to remember to change them. Also most babies definitely cry less after 4 to 5 months. So baby crying is not a long term problem either. 5 to 6 months babies are the most happy ones cuz they don't develop separation anxiety yet and they're old enough to enjoy playtime.
My baby is very sweet and mellow at 6 months old now. Someone told me to enjoy it now cuz toddlers and beyond are much much more difficult to deal with. I heard that 2 year old kids are pain on the ass. Then what shall we do? Add a sibling to the little brat and teach her a lesson. No one should be treated as the center of the world, little kids should know from the beginning.