Sideways Disinheritance is when beneficiaries (often children) don’t inherit their intended share of an estate due to remarriage. Imagine that if you pass away and your partner re-marries and then passes away without making a Will, your children’s intended inheritance could pass to the new family leaving your children with nothing.
Also, you could be in a second relationship and only have basic Wills in place, leaving everything to each other and then the children. If you pass away the surviving partner could change their Will and cut out your children altogether.
Imagine how complicated this could be for those in second or third relationships with children from previous families.
It’s easy to put protection in place to stop this happening to your children.