I have changed name to contribute honestly and then I'll change back! We would be in a position to do something like this for our kids. We wouldn't give them an allowance through life though, as this would definitely be bad for their mental health and futures. But we will probably buy them all a house outright when the time comes. At sill also pay for uni so they don't have to be paying back loans etc.
Our kids are all very different. The eldest is going to Oxford and we don't need to worry about his work ethic because he can't do 'nothing' (he's like his dad) and he is extremely hard-working and focused. He's not interested in 'stuff' either. We won't be giving him an allowance, but my husband will maybe get him securely on the property ladder (London) and also an investment portfolio. I'm not exactly sure how much, but it could be a few million each. Most importantly, he has the self-confidence and resilience to make his own way.
One of our others is less likely to be a high earner as some mild SEN, less confidence and not particularly academic. We will help this one with a house, but this DC will need support to not be taken advantage of and how to invest / budget wisely. But this DC will definitely be working - just probably not in a job that would buy a similar kind of property in London.
Thr younger one is very bright and confident in her abilities, very socially switched-on and makes positive relationships easily (always has) and I don't doubt she'll have a great career. BUT I'm not sure she understands the value of money as much as the eldest does, instinctively, so we'll have to watch her there.
I worked in the public sector until age 31 when I had DC and I've not worked since. There are pros and cons to this - but also, life isn't set in stone and you adapt over time. If I'd kept working, yes, I would have had that identity and the fulfilment of a job (if it was something I enjoyed). But I don't know if I have been 'happier' as such and there is a lot I've done in my life that I couldn't have experienced if I was working. Unless you've lived two parallel lives - how can you tell? So no point worrying about it really.
I'm now at a point when I could volunteer or something and I'm looking into this, but, to be perfectly honest, the 'push' isn't there to earn money because it wouldn't make much difference. The 'cost / benefit analysis of someone working totally depends on context. In a different marriage, I almost certainly would have been working all these years. Maybe I'd be better for it, but also maybe not. I have no idea. On the one hand I feel the financial privilege my husband has provided has meant I've not pushed myself or used my degrees. In the other hand, I feel as if I've had a lot of freedom and generally have been incredibly lucky. I take nothing for granted though, as I grew up basically hand to mouth (not in U.K.). This has not been the case for our kids who have had private educations and every opportunity really. The eldest knows this and he says it is what drives him to make it count. The younger ones, I'm not so sure. Time will tell, I guess. But no, we are certainly not just going to give them money to squander.