Why do you want to put your house in trust for your children?
If you want your children to share the house should you die – you can write your Will to this effect; that the house is then placed in trust until they reach some specified age.
49 isn’t that old – my crystal ball says that you will meet someone to share your life and by the time you die, your kids will have grown and have lives of their own.
As you say, putting the house in trust could impact your ability to do as you wish with the property.
I think that the insurance company will make some money through setting up the trust arrangements – and that this is their sole reason for their recommendation.