Some day we may reach that point. Today, I deal with businesses that require us to enable a firewall restricted vip for them so they can use SSLv3. Some can't remove RC4 from SSH. Some use antiquated software that can only do DNS over UDP and no EDNS support. Many of them can't support SNI TLS endpoints. I could go on for hours.
If the entire internet consisted of just laptops and modern web servers on modern web services, then I would agree it is time. We just aren't there yet.
If the goal is to just tie up the loose ends on laptops, you could certainly start there. Beyond end users, there needs to be some initiative to update old relics however. Old software installations that can't talk modern protocols, ciphers, etc. Even semi-modern software such as python and ruby need some attention.
