In the plan you can state your wishes, where you want to have your service, place of interment, etc.
I have organised a fair number of funerals, the most stressful being my father's, when I was eight months pregnant and my mother shut herself in a room until the day of the funeral, leaving it all to me to organise everything.
When the family lair was opened, it was full, causing even more upset. Two days after the funeral I went into premature labour with all the stress and spent the next month in hospital on bed rest.
To the day she died, she never asked how my husband and I managed to pay for it. She had only a "penny policy" in my father's name and we had to use all our meagre savings.
We do not want our children to ever experience anything like that. I want it to be a celebration of my life, not a miserable occasion.
Sorry I just had to get that off my chest! 