OP in times of noise is totally depends on the environment you domiciled, there are environment that are very quiet and free from noise, in times children I believe we are not all married women and men here and even if we do it shouldn't distract you from concentration you can as well settle there needs first before going to work, or preferably look for nani that will take care of them while you comcetrate.
You are right dear. There are people living in noisy areas and there those living in a noiseless areas. The majoy source of noise should be business activities like those living close to market, main road and industrial area. Anoher source of noise is generators for those living where light is not steady.
Noise is a problem in Nigeria but I wouldn't call it emergency because there are less industries here... the sources of noise in have in Naija are manageable.