Is it (still) worth trying to switch my family and friends from WhatsApp to Signal? (Read all of it, please.)

This may sound a bit dumb, but eh.

So when that WhatsApp privacy policy change thing happened in early 2021, I tried switching from WhatsApp to Signal and Telegram. Telegram kinda stuck with me since i still get news from there, but Signal... not really because I didn't care about privacy back then. Now, I want to make the switch from WhatsApp to Signal, and I have a few plans on how to do that. But, is it worth it, since most people in Türkiye use Whatsapp and even if I switch my family and friends over to Signal, they'll still use WhatsApp since most people are on there.

So, yeah. Should i try, or is it not worth doing? Let me know, also, thanks in advance!

(Note: Most of my family and friends don't really care about privacy.)

(Note 2: This was also posted in r/signal and r/privacy subreddits.)