There are 2 types of tongues
The gift of tongues is a personal issue, to be shared only among a very few if that. Think of this as a ‘prayer language’ and not for public consumption. It is to be an adjunct to prayer; so that the Holy Spirit may pray thru us so we may speak to things and ways we otherwise wouldn't know to address. This tongue is for believers, since it is a tool to be used by believers for the spiritual edification of ourselves and those we pray for. Use in small prayers circles within an assembly may be appropriate if kept private among that group. This may be also used in lifting praise and worship towards God in an assembly that is doing so. It is a partnering with the Spirit in which you speak but the Spirit gives the words.
Then there is a public tongue, or prophecy, intended for public consumption and spoken among an assembly. If one feels they are being led to give a word to an assembly, they should report that to church leadership. Someone else should likewise report being led to interpret a word, before leadership permission is given to address the assembly. This tongue is given to an assembly as an exhortation, and a sign and wonder.
And then there's the origin of 'tongues'. As man's numbers grew after creation he had a single spiritual language. It was one of the few things he kept out of the fall, and it persisted until the tower of Babel. When the Messiah returns to restore all that man has lost, one of those things restored will be that pure singular spiritual language. Christ has won the authority to restore the world, but has yet to return to enforce it. Tongues are an ability for us to access now that future restored language thru the Holy Spirit. Where it talks about tongues 'ceasing', it's not that speaking in that manner will stop, but that doing so will cease to be known as a tongue, because it will be in fact our native language. English at that point would be the tongue.
Tongues are not necessary for salvation, nor should they be demanded as proof of Spiritual Baptism. As with all gifts of the Spirit, it is available to all but not required of any. And like all the gifts, it is effective in helping produce the fruits that are required. The gifts of the Spirit are intended to help us produce the fruits of the Spirit.
Given a good thing, we humans will find some way to screw it up. We will over-use, over-sell, and over-the-top it. That's just our nature. That's when outsiders start thinking we're crazy, and that's where Paul tells some to put a leash on it. Place and moderation are key to tongues being useful vs being foolish. And being foolish with God’s gifts is never a good idea.
