At what age is it taboo/ embarrassing to still live with parents as an adult?

I’m 29 and currently living with my parents. I personally hate it for myself in my current circumstances, but not the concept as a whole. I don’t think it’s embarrassing to live with your parents at all (especially at your age), as long as you’re happy with your life and your level of independence and control over it. Until recently, I was living in a completely different city (with a flatmate), but unfortunately the company I worked for suddenly went under and left me up shit creek without a paddle and a bout of depression. I moved back to live with my parents in the middle of nowhere, and however pretty it is around here, it isn’t conducive to my happiness at all. The nearest town is 9 miles away, and that’s also where the nearest public transport links are. As someone who doesn’t currently drive, this means I’m completely stranded, and feel like crap if I need a lift anywhere. Finding work is difficult enough with the state of the job market. Up here in the heart of buttfuck nowhere is even more laughably dire. And when your transport is limited to needing a lift to either the workplace or to a public transport link, your options are fairly narrow. I have no friends here, so outside of doing the same country walks I’ve been doing since I was a kid, I don’t really leave the house. That combined with the fact my parents are quite controlling has made my depression 10x worse, but it got to the point where I didn’t have a choice. I’m applying for work to build up enough money to move back out. **However**, were I in a position of having my own car, my parents being a bit more chill and less worried about me, having a job locally and nearby friends to see, I would be happy as a pig in shit to be living with my parents. I really value my independence and being able to live my own life on my terms, so if I were able to have that whilst also being able to live at my parents’, life would be golden. In today’s day and age, it’s totally unreasonable to expect everyone to be in a financially stable enough position to live on their own. It’s almost impossible to afford a place on your own as a single person with a single income, unless you either have a very well paying job or handouts from rich relatives. The world’s pretty shit atm, and if it’s between A) spending half your monthly income on a dingy room in a leaky flat with 3 strangers, barely having enough to spare after bills, transport and food so your choice is to either save as much as you can to gtfo and forego happiness in the meantime, or maybe dare to spend that money on weekly classes, hobbies, a night out, or god forbid a takeaway and streaming services, or B) live with your parents (if you get on well enough with them to do so) and maybe get to save more of the money you work for as well as afford the odd nice thing here and there… well yeah I know what I’d choose lmao.