I remember the days in the 70s when flying was too expensive for families to consider. Even making a long distance call was reserved for special events.
I don't suspect travel in space will be that way in my life time being that I am in my fifties but I can hope.
Electricity as well. The very first few installations of electricity in homes by Edison were in Pierpont Morgan's home and soon followed by Morgan's friends' homes.
It makes logical sense too that it should be this way because early on, tech is usually very expensive and highly experimental such that if it fails, only the rich can afford the losses and upkeep.
I imagine the poor would adopt things too if they had money.
That has already been an enormous revolution in space access, and it's just the beginning. They haven't been landing rockets for shits and giggles. Relative to the cost of a rocket, fuel is practically free. The real cost is in the actual materials for the rocket and engines. And previously companies have just thrown those away. Even the Space Shuttle had 'reuse' only on paper rather than any significant reusability. But the Falcon rockets are genuinely reusable, and them autonomously landing rockets is now, amazingly, starting to become business as usual. Go for a flight proven rocket and the costs drop even further.
This is only what has already happened. None of this is future or speculative. This is happening at this very moment. If you want to see what the plants are then look into the goals for the BFR and Mars. This is the thing that's so disappointing. We're currently going through one of the biggest revolutions in technology today, that will likely be a keystone moment for our species' entire existence, and most people have absolutely no idea the relevance or scale of what's happening - instead distracted by irrelevancies that nobody will even remember in 10 years, and in many cases - 10 months if not 10 weeks.