Ballet is rather an extreme form of exercise if done seriously - but good for him. It's certainly more interesting than going to the gym or jogging. Like him, I have never understood why it's considered "effeminate". It would do most males a power of good.

And most females, so I've been told.  I've never had a ballet lesson in my life, but as it happens I've enrolled in a 12-week course of beginners' classes starting in April

I went to an adult class for many years here (although it wasn't beginners).  I only stopped because the teacher got religion in a big way.  Born again with a vengeance!  It was God with every plié.  The final straw came when I got a note through my door inviting me to "come to the studio on Tuesday when salvation will be offered."  It was such a shame because the six of us who went had all enjoyed it so much.  Two of them were Jewish anyway and the rest of us weren't exactly pillars of any faith.....

There are a few adult beginner classes in this area for ballet/tap/jazz.  Our problem was that there wasn't the standard for people who'd gone past that stage.  I did suggest that we just carry on ourselves and we did for a while in each other's houses but that of course wasn't ideal.  Then two of them moved away and we disbanded.  I still do exercises myself at home but I would love to go to a class again.  I have a German friend who used to be a soloist many years ago with the Berlin Opera Ballet.  She came over and for three weeks we worked together.  It was really wonderful for me to have some lessons from a top professional - not that I would have been in her league had I done it for another 50 years!!!