I’m your age / flexibility. I do a weekly class for about 5 years, although I’ve needed to skip it for the last 3-4 months for other commitments. I don’t know what kind of yoga it is? It’s called ‘flow for all’ or some such.
Initial struggle? Well no and yes. No because the instructor caters for all abilities, so there are options for everything. Yes because, even though its less about doing it ‘right’ and more about ‘right for you’, you still want to get ‘better’ at it. Also it will take you a few times to get used to some of the sequences the instructor favours so prepare to find yourself wondering wtf you are supposed to do at times.
Time? about 6 weeks noticed the difference. Stuff like bending down to get something out the cupboard under the stairs is all of a sudden easier. Don’t think it is about flexibility, that’s actually not the main thing, think more about strength, balance, composure, focus.
Hints? Do a class. I tried app/book/video and its nowhere near as good. Plus if its a class at a set time, you have the added incentive/routine.
On the down sides ……..
There is a ton of spiritual woo to wade through. To be clear, if you see it as just physical exercise, you are missing out on a fair bit. However, sometimes you just need to let it go in one ear and out the other. This is heavily instructor dependent.
Unlike cycling, middle aged white men are the minority demographic. Not really a down side but that’s how it is is. Where I go there is actually a good mix.