Email, video calls, photo sharing services, etc.
My parents ans I live on different continents and we still manage to speak regularly, share pictures, etc. All of that without any of us having a Facebook account.
All of which have enabled many abuses such as financial fraud, terrorists being able to communicate, pedophiles sharing pictures, etc. Ban phones and email. They're too dangerous.
I can manage fine by seeing friends and family in person. If you can't, maybe you just don't care enough?
Services that might not require you to expose your real identity to the whole internet, that might not exfiltrate your full contact list from your phone or would not apply questionable morals and censorship on the content you exchange with your loved ones.