Corel does it. Also QuarkXpress. And all Adobe apps.
Corel has also a very helpful dialog during opening a file with missing fonts.
There you can decide if the newly saved file will change the fonts permanently or just temporarily.
I design stuff in LB on one PC and there I have a much stronger system configuration so that I can have many fonts installed simultanousely. I then do a copy of the text and change it to paths and save it.
Then I go to the PC connected to the laser, a very old computer with just a few fonts installed. I open the file and the fonts of the text which is not converted to path will be changed. If I forget that and save the file I have then problems on the designing machine, all fonts definitions are gone.