One thing at play is there’s likely a large imbalance with the male/female ratios — lots more single men than women under 50. Same in the US, specifically on the west coast cities.
https://www.census.gov/newsroom/stories/unmarried-single-ame...
I think a lot of men focus on dating apps specifically (where the numbers actually are super imbalanced) which creates the perception of a large imbalance everywhere, a perception that isn't really true in general.
In my home state, for example, there's about 8% more single Women than Men. And there's a list of like two dozen medium-sized and major metros where this is true across the US (Pittsburgh, Boston, Detroit, Richmond and DC metro, etc) - https://www.movebuddha.com/blog/best-cities-single-men/
Atlanta too, has more single women than men by a wide margin ( https://www.thrillist.com/entertainment/atlanta/why-dating-i... )
Yes, the tech hub metros lean male-heavy (SF, Seattle, Austin, etc). But, generally speaking, most of the US is the opposite, so.
This is just a US-thing: more men on the west coast, more women on the east coast.
https://www.statista.com/statistics/799446/resident-populati...
What region are you talking about? At least globally, there seem to be more men born than women.[1] Also seems to hold for the US[2].
[1] https://upload.wikimedia.org/wikipedia/commons/f/f6/Global_P...
[2] https://en.wikipedia.org/wiki/File:USA_Population_Pyramid.sv...
So... young women prefer older men, and vice versa? I don't think that is a new thing.
[0] https://www.pewresearch.org/social-trends/2020/08/20/a-profi...
Hell, even IF looking at the streets were a good way to judge, you'd still have to look at an awful lot of a lot of them before you could make statements about a whole country the size of India, and you'd need to avoid any personal cognitive biases (like confirmation bias), and...
This link suggests that as of last yeah there were 1020 women per 1000 men in India https://www.statista.com/statistics/1303286/india-urban-and-...
Maybe you can find a source for <30yo gender split there? But whatever it is, I highly doubt it's a big enough gap to be the cause for you not seeing (/noticing) as many women as men in public.
Around 109 males for 100 females in 1991(30 years ago) and 110 for 100 in 2001(20 years ago). Sex ratio at birth has only recently begin to normalize with complete banning of prenatal testing. This has already create a massive problem of "missing women":
https://www.thehindu.com/news/national/46-million-girls-went...
https://www.thinkglobalhealth.org/article/missing-girls-indi...
This is known as "bare branches":
India’s bare branches - https://www.hindustantimes.com/columns/india-s-bare-branches...
Tackling India's Bare Branches - https://www.researchgate.net/publication/353220444_Tackling_...
Bare branches, redundant males - https://www.economist.com/asia/2015/04/18/bare-branches-redu...
India’s Bare Branches - https://foreignpolicyblogs.com/2011/03/19/india’s-bare-branc...
(and many more)
The book that brought attention to this all is Bare Branches - The Security Implications of Asia's Surplus Male Population https://mitpress.mit.edu/9780262582643/bare-branches/
> What happens to a society that has too many men? In this provocative book, Valerie Hudson and Andrea den Boer argue that, historically, high male-to-female ratios often trigger domestic and international violence. Most violent crime is committed by young unmarried males who lack stable social bonds. Although there is not always a direct cause-and-effect relationship, these surplus men often play a crucial role in making violence prevalent within society. Governments sometimes respond to this problem by enlisting young surplus males in military campaigns and high-risk public works projects. Countries with high male-to-female ratios also tend to develop authoritarian political systems.
> Hudson and den Boer suggest that the sex ratios of many Asian countries, particularly China and India—which represent almost 40 percent of the world's population—are being skewed in favor of males on a scale that may be unprecedented in human history. Through offspring sex selection (often in the form of sex-selective abortion and female infanticide), these countries are acquiring a disproportionate number of low-status young adult males, called "bare branches" by the Chinese.
> Hudson and den Boer argue that this surplus male population in Asia's largest countries threatens domestic stability and international security. The prospects for peace and democracy are dimmed by the growth of bare branches in China and India, and, they maintain, the sex ratios of these countries will have global implications in the twenty-first century.