Specifically, in 2nd time around relationships. I don't mean simply wealth, more attitudes to money, saving, aspirations and long term plans.
For context - me and DP (of 5 years) are both mid 40's, both with pre teen kids from our previous relationships. We don't live together, and no intention to, at least not until kids have grown up (about 10 years). We both work, and are on relatively low, but similar incomes. So we're currently fairly well aligned, but long term I worry we might be on divergent paths.
TLDR:
I'm a homeowner - managed to get on the property ladder in my late 30's, and I'm striving to overpay my mortgage. It's full term would take me to 70 to repay, but I'm throwing everything at it and current projection is that it'll be paid off by about age 55. DP has lived in social housing (nothing wrong with that at all) all their adult life, and so considers rent over £350pcm to be expensive (open market rents are currently about £1000pcm for a similar house round here). DP hopes to buy under right to buy scheme (but would only qualify if the proposed rule changes happen) 'in about 5 years or so'. DP will be 50 by then, and I've pointed out that most lenders only go up to age 70, so possible mortgage terms will already be shortening.
I've managed to build up a decent amount of savings over the last few years, which I'm hoping to put towards a house extension, or moving somewhere larger. DP has no savings, always lived month to month (I've lent money to help clear some debts, which has always been repaid on time), and tends to buy lots of stuff on finance (inc. fairly expensive car and non essential luxuries - e.g. fancy hot tub). By contrast I've always tried to avoid finance and simply gone without until I've saved up. I struggle to imagine DP being able to save for a house deposit while young enough to qualify for a mortgage.
I'm self employed (and was late starting pension savings), so I'm also making quite large monthly contributions to that to try and catch up (and to have enough to not have to work until I'm 70). DP has no pension provision over state pension, except for the nominal workplace pension scheme.
Less relevant, but still a consideration is that my parents have also worked hard and been quite prudent with money their whole lives, now they're retired and financially rather comfortable. I've got siblings to share it with, but at some point in the distant future there is likely to be some inheritance coming my way (hoping I'm 70+ and it'll go straight to kids/grand kids). DP's parents have no assets so nothing to hand down.
So my long term aim is to be debt free and able to start winding down work around mid 50's. Would like to go travelling, and maybe live on a narrowboat for a few years (whilst renting out my house). Obviously I'd like to be able to do these things along with DP, just can't imagine DP doing anything other than treading water financially until state pension age.
I'd happily let DP move in with me once all our kids have flown, but DP is fiercely independent and I can't imagine them ever wanting to give up their social housing. I've mentioned some of my longer term ambitions to DP but get the impression they aren't thinking anything beyond keeping our living arrangements and finances separate. I do wonder if we're going to end up 15 years apart in retirement terms, and if the relationship could survive that.