How to deal with Youtube asking to sign in for age restricted?

[abrogard]

I wish to download this: https://www.youtube.com/watch?v=pMUcrtBGX5w

and I get this:

PS C:\ytdlp> .\yt-dlp "https://www.youtube.com/watch?v=pMUcrtBGX5w"
[youtube] Extracting URL: https://www.youtube.com/watch?v=pMUcrtBGX5w
[youtube] pMUcrtBGX5w: Downloading webpage
[youtube] pMUcrtBGX5w: Downloading ios player API JSON
[youtube] pMUcrtBGX5w: Downloading tv embedded player API JSON
[youtube] pMUcrtBGX5w: Downloading android player API JSON
[youtube] pMUcrtBGX5w: Downloading web embedded client config
[youtube] pMUcrtBGX5w: Downloading player a62d836d
[youtube] pMUcrtBGX5w: Downloading web embedded player API JSON
ERROR: [youtube] pMUcrtBGX5w: Sign in to confirm your age. This video may be inappropriate for some users.
PS C:\ytdlp>

is it necessary to sign in to youtube? i don't know if I could even do it. not sure if i have any sort of account there....

[CrymanChen]

Use cookies from browsers.
For example:

--cookies-from-browser firefox

[abrogard]

It worked. Is working now. Thank you very much It's bloody wonderful this ytdlp isn't it... bloody marvellous....

[whs912km]

Use cookies from browsers.
For example:

--cookies-from-browser firefox

in the past i've used an extension to do this, but browser cookies with yt-dlp are the easiest way!
but if i don't have a browser installed on my system, but a portable version how can load my cookies?
Cookies file is stored on \Data\Default\Network