> That does not negate the opportunity we both have to live in a country, and time, when we can both pursue the life we (realistically) want.
This is a very narrow and simplistic view of opportunity, both in the present and historical contexts.
I assume that you (a man) and your friend, a sporty woman, live in a country and time (the US?) where she enjoys some of the wins of early feminist movements in the US, namely the right to vote, to have a bank account without her husband's permission, etc etc. Life is in perfect harmony and institutional bias has been solved, hooray!
It's possibly true that women in the US have it better now than they have at any other time in history. However, the opportunities of women are still not equal to that of men. Perhaps your friend has opportunities to pursue passions in women's sports, but what if she wanted to enter the corporate world and work her way up to management, C-level, etc? She will find it more difficult to pursue this opportunity than you would. Even in women's sports she will have a different (and subjectively worse) experience than a man would have in his sporting career: to this day women in sports earn less than men and are often treated not as athletes but as sexual objects that compete for the attention of male viewers -- for example, in 2021 the European Handball Federation imposed a fine on the Norwegian women's team because they wore shorts instead of bikinis during their match, like the men's uniform.
> Of course all children everywhere do not have the right to choose their own path. Indeed that's a -very- recent development, and is still not universal. External factors still collide all too often.
Children not having the right to choose their own path is not a recent development, it is a fact which has long been historically true and in the context of this history draws a throughline to reduced opportunities to this day. To give one oft-cited example, consider generational wealth disparities between white and black Americans. White families have had generations to accumulate relative wealth, comfort, and security, dating back to the founding of the United States, wealth in many cases built from slave labor, in other cases from discriminatory laws such as the Homestead Act and redlining. This wealth gives them access to opportunities, such as economic access to higher education, but also access to better (more expensive) neighborhoods with better schools and so on. Black families in the US have been historically unable to build generational wealth due specifically to this history of racism, and today a black child has significantly reduced opportunities for these reasons among others (institutional racism in other forms is still a big deal in the US). A black family has never been able to choose the same paths as a white family in the United States, now and throughout the history of the country.
> I am encouraged by the progress of the last 100 years. I hope that progress continues for the next 100.
We don't really live in a progressive moment, in the US but also generally. Women's rights, LGBTQ rights, and others, are regressing right now.