When it comes to ministering to MAN, not all will have diversities of tongues (speaking in multiple earthly languages by the spirit) nor will all have interpretations of tongues (interpreting the "unknown' tongues ((babbly talk / stammering lips)) into English). Because that's what type of ministering Paul is addressing in 1 Corinthians 12. He makes that clear in verse 7:
1 Corinthians 12:7 KJV
But the manifestation of the Spirit is given to every man to profit withal. (meaning to profit the body as a whole)
speaking in tongues (the unknown / babbly kind) isn't intended to be used to benefit the whole (unless God has it interpreted). It is not being spoken to man. It is unto GOD.(1 Cor. 14:2) And is the SPIRIT praying, not the understanding. (1 Cor 14:14) And God requires that those who worship HIM
must worship him in SPIRIT as well as in their natural understanding. (John 4:23-24)
render unto man what is appointed for use unto MAN... and unto God that which is appointed for use unto GOD.
Love in Jesus, (and great question, BTW)
Kelby