There's lots of helpful replies on here but here's my experience. I'm 40s, most of my career has been in charity sector in a variety of operations / front-end or managerial roles. SMT in small charity, middle management in a bigger.
After witnessing a whole bunch of redundancies and covid etc I decided I wanted something more 'robust' - ie transferable. And with more money. Sick of terrible pay and terrible pension.
I chose accountancy, and I'm just qualified now. I worked in a charity finance team to qualify, and I'm just moving jobs to a bigger NFP with better pay and conditions.
I think AI could really dramatically take over a lot of finance functions - essentially all the 'processing' parts. And quite a lot of the analysis parts too. I work as a Finance business partner, and this is all about using the data to make strategic decisions, getting buy-in from business units, it's about 'how' to make the numbers work. So I feel quite safe for now, but despite being fully trained I feel I need to carry on training with data skills, automation and integration of systems... It's this where I think some young hot thing could come in and say 'you could do that in 5% of the time if you did this....' And my answer will be 'GREAT - that frees me up to do all the strategic thinking about just how we want our business to work'. But, definitely all the 'admin' element roles are at risk. It's made for AI.
So - basically, I chose transferable over future-proofing. If the charities go tits up because of funding, I can work in industry. I can go into practice. I can get a job that pays okay. Tbh, it's not as lucrative as I was hoping (where I am, I don't want to commute to London etc) - but it's solid, better than I was on before and I do feel 'safe'.