For those who have an account with YouTube, there is a channel that teaches all about car and truck detailing. The name of the guy that owns the channel is Mitch. And he can teach you the trade of detailing cars and trucks. He has a central vacuum system which comes in handy due to that you never know how much rubbish you are going to be vacuuming out of the customer's car. What he does every month or so, when he empties his pit inside the garage, he recycles the dirt that has been sucked out of the car by the extractor and has been flushed off of the cars he washes. To me, I find it to be very useful for those who want to open a car and truck detailing shop. He has links in the description of every video he makes! He has two channels. So if you want to open your own car and truck detailing company, I would subscribe to these two channels:
The Detail Geek
https://www.youtube.com/channel/UCAQHQEO4QpI5dXtr3vLoFCg
The Detail Geek 2
https://www.youtube.com/channel/UCvLgwdQieI0EhWK1VomjFXw
Seniors are just antique people rich with history.