I'm probably going to leave phone companies entirely, when I'm no longer on my family's plan, and set up a VoIP number because it'd give me hands-on experience

I'm probably going to leave phone companies entirely, when I'm no longer on my family's plan, and set up a VoIP number because it'd give me hands-on experience with how VoIP works and it seems more cost-effective for my use case. I'll remember Twilio if I need it for any verification purposes, but it's definitely a sad state of affairs that phone numbers are seen as a mandatory identification step in this day and age. I understand that it's an easy choice for some companies to make, but it doesn't mean I have to be happy with it.