I tend to believe WaPo about the Metro ridership numbers on Saturday

[nitpicker]

https://www.washingtonpost.com/local/2018/live-updates/politics/march-for-our-lives/metro-ridership-is-high-but-far-behind-womens-march/?utm_term=.7b1c6118afd6

Metro ridership is high, but far behind Women’s March

Metro’s ridership numbers illustrate what many riders were seeing: large crowds.

By 1 p.m., more than 207,000 people had ridden Metro today, according to WMATA — three times as many as a normal Saturday by that time. And heavy crowds were still making their way to the rally on Saturday afternoon.

By comparison, Metro reported more than 470,000 trips on the system by 1 p.m. on the day of the Women’s March on Washington last year — Metro’s second-busiest day in history.

Even though the numbers for the March for Our Lives aren’t as high as the Women’s Mach, this is expected to be one of Metro’s top ridership days.
(snip)

((The local TV coverage, as the rally ended, showed quite a bit of space at the tail end of the rally as protesters moved away. Therefore, my own guesstimate of the attendance:
150K by Metrorail (remember the cherry blossoms are starting to pop out)
50K by bus
100K by car/taxi/other transport drops (plus some walk-ins)

HOWEVER, two local TV channels (plus C-SPAN, at least on radio) were doing live coverage of the rally. This may have cut down on the physical attendance in DC.))

[alphafemale]

1. It's not a competition.

Why do you think it is?

[OneBro]

2. Apples and oranges.

Unlike adult women, kids can’t just travel cross country at will even if they have the financial resources.