I too would completely begrudge having to pay IT on anything over £125,000, whilst it is a sizeable amount of money and I don't want to sound flippant, it doesn't go far in the south east. Where I live a one bedroomed flat costs in the region of £330,000. We've helped our children in several ways, paid for accommodation when one was at university so he came out with less of a student loan, given money to help with a deposit for the government's "Help to Buy" Bailed the other one out on numerous occasions when he became a young, and financially unprepared father with his ex partner, stumping up numerous deposits for flats and help with all manner of things pertaining to our grandchildren, even helping with debts etc. I think the present generation have an uphill struggle in some ways, that's not to say I wouldn't like more help to be provided for those who aren't fortunate enough to access assistance from family. Property prices are very high in our neck of the woods and it's not always easy to just up sticks and go and live in another part of the country when work and family are in this area. Getting on the housing ladder these days usually involves buying 40 or 50 miles out from London and the commute in will then cost something in region of over £4,000 per annum. I don't remember it being quite as hard when I was a 20 something buying my first home, we, my ex and I, were still able to buy fairly close to the capital say 10 or 12 miles out.
My late father-in-law built up a business, worked his backside off 6 days a week, paid the top rate of tax and then when his estate was wound up after his death, his children had a quarter of a million pound IT bill, wasn't it enough that he paid at the top rate during his working life, a double whammy imo. I know we are both lucky to have inherited from our respective parents, mine weren't anything like as well off as my husband's but they did leave money from property. I regard myself as a custodian of a fair portion of that money to pass on in dribs and drabs to my children provided it's not wasted on fripperies, but to try and secure their future and their childrens. God forbid if Corbyn and his mates were running the country we might as well spend the lot on ourselves. Of course the very rich will find loopholes to avoid paying it.