Tough crowd...
When i was younger, we had kerosine bowsers at local servos since many people used kerosine heaters at home. Such wheaters were easier than chopping wood and cleaner than burning brickettes. Many homes also had oil heaters, so small tankers delivered heating oil to homes and top up of their oil heater tank so people could stay warm...
Such was how many heated their homes unless one lived in inner city where huge gas works existed to make gas and pipe it to homes within their area....
So the post was a joke to highlight how things have changed and how we can never predict how they will change (who would have through how it would become back then)...
So I've added a few emojis to my post to highlight the joke but that probably wont help for the youger members who haven't experianced such life (who've had it too good in some ways and worse in others
).