I think it will be annoying during the transition period, and that could last a decade. For example, a (relatively) new Samsung phone and Watch recently came with only a Charging Cable that had Male USB-C on the block end of the cable. However, I have many old wall outlet blocks that have Female USB-A on them, for use for charging various Apple or Android (or even other pieces of electronics that are now almost a decade old, but still used today). I can't easily use those old blocks into the future for also the newer devices. I either have to start replacing blocks or cables, or get a bunch multi tool adapter pieces. Oh well I guess.