That’s £120 pm, or £1440 annually. Doesn’t seem like it would make that much of a dent. Probably the number one thing you’d need to do is cut down on food costs, which is doable, to be fair, as it’s quite easy to spend 10x or 100x more than what you need to stay fed.
That ignores any interest on the savings. So yeah it seems like "small" regular spending in your 20s (e.g. $100/mo total) can add up to an entire down payment in your early 30s.
Also, what would happen to people with not so well off parents?
If someone's parents were able to provide a place to live until 18, why is 19 suddenly impossible? You don't need to be well off to let your kids stay with you a little bit past legal adulthood. Surely there's room for a couch or a bean bag or something to give them a huge leg up right out of the gate, assuming you were in a marginal position where you otherwise needed to immediately kick them out and downsize.
Some people are going to have rough situations and can't rely on a family at all. Some will need to emancipate before reaching 18. How common is that? If it is common, that seems like the real problem to address.
Before there was starbucks there was a local cafe and coffee shop, before the Internet there were newspapers and magazines to pay for.
It can't be done. We've lost something. We have also gained things. don't get me wrong, I like having the Internet.
If only I could give up Hulu and Netflix, I could afford to go back to college and go on vacation every year? Let me guess, I also just need to eat less avocado toast and I'll be able to afford the downpayment on a house.
The above is just a short list. Live like 1955 and you can support a family of 5 with, a car, vacations every year and a nice retirement. You won't have many of the other luxuries people enjoy today. If you don't want to that us fine, but don't say it can't be done.