With covid and the pandemic I am looking at making a will. I am divorced from my children's father and he's basically a useless alcoholic and gambling addict but still has PR and pops up making a nuisance of himself periodically. Can I appoint a guardian for my children in my will who would be able to have some say in their upbringing and also manage my children's finances. My ex would go through the life insurance pay out and any left over assets within months and there would be nothing left for my children. Any general advice on how to protect them if the worst happens please? Many thanks.