Lifetime ISA should be the No. 1 ISA for 18 to 40 year olds and any children they may have when considering Junior ISAs for your children.
Why bother saving in a normal adult ISA for savings or saving in a Junior ISA for your children when you get a 25% bonus for Lifetime ISAs.
25% bonus when used for housing deposit or leaving it into 50s.
Save in one for your children so that you can use for school fees, university fees, weddings, cars, housing deposits etc with a 25% bonus.