In most organisations round the world, many meetings (in my 50 year experience - 99.9%) are totally useless, and a waste of time.
Too many people - especially management - have meetings for the sake of meetings. They think they must hold meetings because that is their job, and it somehow makes them look important.
Most people - other than management - hate attending meetings.
The OP says "it is important to have meetings to discuss THINGS". Therein lies your problem. What "THINGS"??
Is a meeting the only solution to this problem? What other means of communication have you tried? None, I'll bet.
Meetings are NOT the be all and end all. You need to look at alternatives.
However, if you must have a meeting, then:
- it needs to be structured
- it needs a set agenda with topics for discussion
- it needs a TIME LIMIT
- it needs a chairperson who can keep control of the meeting, and close down the time wasters
- it needs a minute taker who can document the actions, and who is in charge of implementing that action.
Too many meetings go for 1 hour when all that is needed is 15 minutes.
Also, too many meetings revisit old ground. Keep minutes, and hold people accountable for the actions decided.
And, don't have weekly meetings, when monthly meetings will achieve the desired outcome.
When staff see that the meetings are important, useful, and achieve outcomes, then you will get buy-in. NOT BEFORE.