...and they are telling you to "get off my lawn!" :p
Here's the deal, Adonis. The POT's you are looking for grew up in the 2000's and 2010's. They do not know a time when literally everyone did not have a smartphone. And smart phones mean apps. And apps for young people mean free apps. And the most popular free apps for communications are WhatsApp, Snapchat, Telegram, etc. If you want to engage these POTs you will need to come onto their lawn to do so.
Yes, the popularity of these apps mean they are also the favored tools of scammers. That's true for the same reason - that's where their target victims are and they are largely untraceable and free. Having said that, your instincts about additional caution with apps based in, or most popular in Asia are valid. But a scammer can only scam you if you let them do so. I had a M&G on Thursday with a 26-year old brunette near me. She messaged me 1st, had 3 head-only, filtered pics and listed her location on the far side of the county I prefer. In her short message, she gave me her Snapchat with a request to connect. My Spidey Senses were blasting at full volume. But I contacted her in Snapchat anyway. I thought if nothing else, I will get intel on the latest scam playbook.
That ended up with a 2-hour M&G and we have a BCD date on Tuesday. I think she uses Snapchat specifically for her safety; the messages disappear in 24 hours, you can turn off your snap-location, you keep your phone number hidden, etc. Using the pics she did allowed her to reduce the chances of being recognized.
For your last question, yes. Google Voice (also free) provides you with a different unlisted phone number you can use for calls, texts and vid chats. You can block anyone and even throw away the number and get a new one. I give out my G-Voice number when I suspect a scammer for these reasons.
So my suggestion is to stop being an old fuddy-duddy gramps, and start being a wise, sexy older guy who's comfortable with the new and cool tools.
Life is good
The Cat