My kids call. Only they tend to call through Discord or Whatsapp instead of just using the actual phone, for some reason. But they call, and they pick up when I call them. They also call their friends for gaming.
I'm in my 40s and I also prefer to call people on Discord, Telegram, Signal or (if no other option available) WhatsApp. The phone dialer is just inconvenient, while the above-mentioned chat apps have all the contacts listed and easy to access. There's also a slight worry about being charged for every phone call and every SMS and having to worry about your phone plan and texting plan separately from your data plan; maybe that's not a thing anymore but it used to be really worrying, so it gives me more peace of mind to only have to worry about the data plan and nothing else.