When DH's brother passed away, my own brother's youngest was about 9 months old - my DH requested that our neice be there as it helped to embrace life as well as mourning the loss of his brother. there were other children there as they were very close to DH's brother, and for them, it was good to see us grieve, but also good to have the baby there to help see that life is still beautiful.

i have no issue unless you have a child that is unable to understand the concept at all - a baby is fine and if your DH feels he will manage better having his family near him, i agree it's a good thing to do

i guess you just need to remind him that if bub's plays up, you'll walk outside, which means not only will he not have the baby there, he'll not have you, and will he be ok with that