gilera, karen.. it is common for grandparents-in-laws in wanting to take care of grandchild.. But there is no such thing like which side should take care of grandson la.. I only know we as parents must be responsible for our child..
For my case, i choose the better caregiver between my mum and MIL... Whenever I go checkup, baby go checkup, or during whatever occassion, my gal was always in the arms of my MIL... I mean, if she likes to carry or take care, just let her be lor..
Sometimes she also did alot of old wives' theories in taking care of my gal.. That is why I keep saying it is hard to practise perfect theories from books one... My philosophy is, as long as my gal nvr fall sick or become unhappy, whatever she does i will close one eye la... My gal is now strong and healthy and happy!
Comparing CL to MIL, I will prefer MIL to take care of me during confinement because CL can really be a headache if u get a lousy one and I saw a few encounters with lousy CL who only care about sleeping at night and anyhow feed the baby with bottle, ended up the baby kena colic... No one will take better care of the baby as compared to yourself and own PILs/Parents one... Own parents/PILs u can get ur hubby or urself to correct them mah.. If u anyhow correct CL, dont know what they will do to ur baby lor.. wanting to take care of mummy and child during confinement is no joke, should be happy that own parents/PIL volunteer.. Maybe u can just specify what u dont eat to her so that she will avoid cooking.
Just my few cents worth.. Life is too short to be unhappy over such things.. There are still many years to come living with in-laws or parents.. And must always keep in mind, Family = Father and Mother I love you... No one will treat us better than our parents just like us to our own children...