This is were there a variety of ideas, often on opposing sides of the spectrum.
To the main discussion, is comparing the housing situation in the past going to solve the present situation?
One thing we can gain from the past, is that for many decades houses were considered for their use as a place to live. They had broadly stable income to price ratios. They were not speculative assets for investment. Until suddenly they were. The first generation in Ireland to broadly gain good incomes from employment, used their spare income, available to them ironically in part due to low housing costs, on buying additional homes as investments for retirement, inflation offsetting, new income streams etc. Fast forward over the decades and this had a massive effect on boosting the prices of housing and capital in general. These people are still a massive voter base and hence there is little appetite by government to do anything that would effect house prices negatively.
Simultaneously households suddenly grew from largely single income households to dual income households. This had a very strong effect on increasing the prices of houses as the extra spending power was inflated away. Now you need a dual income household to afford what a single income household could once afford. Whilst I 100% agree with women being allowed to work or do as they wish, I strongly believe dual income households is the biggest scam of the end of the last century for families. You now have the second person working to essentially spend all of their income on increased housing costs and the costs of hiring someone else to raise their kids. You both only get to enjoy a sliver of time in evenings and weekends with them and spend the majority of your time at work. If you buy an older home, the houses are often the exact same as they were decades ago with no work done to them etc. Just a far higher single income to price ratio. This is also why single people often feel so left out in the housing market today.
You see the symptoms of this manifest in the average first time buyer age being 34 and the fertility rate of 1.6 being well below the required replacement rate of 2.1. People are having families later and as a result having no choice but to have less kids. Who benefited from this? Companies did as they saw their productivity rise significantly while wages never had to keep up. Profits soared and shareholders or capital owners benefited greatly.
I believe a much better transition would have been to keep the economic protections of a single income household and just remove any reference to gender from it. Refer to them as a parent. Either parent can stay at home and one works. There is an upcoming referendum on removing this reference to household economic protections in our constitution as it refers specifically to the role of women in this context. However I think it should just be altered by removing references to gender rather than be removed completely. Anyways this risks turning into another discussion entirely.
To stay more on point this also plays another role into what makes social housing even more attractive today if you want to have a family. It lets you have a one income household without having to be in the top 10% of PAYE earners in the country.