I need you to understand that when I want someone launched into the sun, it's not because it is easy, but because it is hard. I want to go to the extra effort and delta v necessary so that we can make it abundantly clear that you, evil horrible cretin, are worth the collective effort of thousands to personally be launched into the sun.
They aren't all designed to connect to your cold water line. In fact, most seem to specifically instruct you to connect to your hot water intake. You are right that most in the US have water heaters, but that doesn't mean that the machine's cycles will heat the water effectively for the full duration of the wash.
Maytag, Whirlpool, GE, and LG all recommend you connect to hotwater. Bosch (EDIT: Spelled this like the drug company not the appliance company) recommends cold. Depending on your machines cycles as well, the heating element may not get the water hot enough to make effective use of the pre-wash cycle. If your machine is connected to the hot water line and you purge the cold water from the line, you will see a more effective pre-wash (and thus more effective wash) than if you let it run cold.
I'm in a somewhat similar boat. I wanted to design video games. Create worlds, write characters, work on mechanics. I went to school for computer science and took a bunch of classes to learn skills necessary to make games. Then I made two games. Turns out I hate it.
Now I'm a lawyer and I sue drug companies for a living. I still spend time building my little worlds, but I don't think I'll ever make them into anything more than TTRPG campaigns.
Maaan Six Flags has terrible lawyers lol. It's injured 70 people in 6ish years of operation? It's killed two and put another in a coma? This is liability 101 here. I imagine the ride was safe when it opened 24 years ago but, with time and Six Flags' notorious lack of investment and maintenance of their parks, it's more dangerous than it was new. I wonder when the execs decide they want the bleeding to stop.
Lost two family members to alcohol related causes, and a third had major health complications that were compounded by booze. I just see no need to get back into it.
While this isn't why I decided to buy a full electric vehicle, the lack of oil changes was a positive I considered when shopping. BEVs aren't perfect, but they do weather gas and oil shortages pretty well.