I did that too. Until I realized most of the group that remained overlapped with friends/family I communicated with in Telegram, WhatsApp and SMS chats. So there was no point to keeping a Facebook account.
Addition/edit: Furthermore I closed my account because I truly and sincerely believe that mass social media has a more negative impact on society than addiction, untreated mental illness, and all forms of abuse (child, domestic, etc) put together.