Hello! Thanks again to all of you for your very helpful replies. Re the vacant property grant - I have completed all the very complex paperwork and am waiting for payment - I started the process tow years ago.
Re giving my children the 15k each - I don't really feel they deserve this at all - but otherwise I think it would be very difficult to get them to leave the family home. 15k is about a year's rent in Ireland - well probably 13k - it gives them a year to save for rent for the following year.
Re my adult children knowing the address of my cottage - they do know it as it's been in the family for so long but they won't travel the 100 miles to see me. They only telephone me if they need something.
I am really looking forward to retiring and living simply and frugally. It's been 10 very difficult years. When I go through the door of the family home, if feel on edge, nauseous, stressed, and really down, when I am away in my cottage - still living in a mobile beside it as it's not finished - I feel relaxed, joyous, fulfilled. When I walk through the door of our family home, my son doesn't speak to me. My daughter only comes out of her room for food - she works - but in the evenings is always in her room. If she speaks to me it's always to complain about her job, how tired she is, the cost of living in Ireland, how hard her studies are. Neither of them would ever ask anything about me, if I need help after forthcoming surgery etc, in any case no practical help was offered. The house is also often in a state and I have to keep asking them to do their share which leads to resentment from them. So looking forward to retiring from all of this.
Re investing - I'm hoping to most of the money into government savings bonds.