The problem there DustyDoorframes Is that most long term bonds are only available to over 18s, so Op would find it difficult to open a bond the day before they turn 18!!!! Once they hit that birthday, most accounts will become theirs and Op will be locked out of any online logins.
I sometimes see people saying “don’t tell them about the accounts”y but unfortunately the financial institution will do that for you, writing to them as their birthday approaches.
Op - my two inherited an almost 6 figure sum when 17 & almost 15. They are both over 18 now so the money is in their name. Whilst it’s a risk letting them have control, we had no choice as the will didn’t state an older age.
We have talked a lot to them about how lucky they are, how it’s their house deposit and how, if they fritter it, we won’t replace it (even though we could afford to gift house deposits). So far so good, both are being sensible. The money is being drip fed into S&S ISAs monthly and remainder spread across 1,2,3 yr bonds. Maybe we have been lucky, but I am a great advocate for financial education and involving them. DS has started to put some of his into individual shares, just dipping his toe into buying them.
Both hope to travel in next year or 2, both are saving from earnings (gap year and year in industry jobs) but I have also said that if they need more, then they can use some of the inheritance. I don’t want them to think they can’t touch any of it, it’s a balance between saving the majority but travelling whilst young and free.