Dependant child over 18 years

[Last_one_standing]

I have recently gained British citizenship and so is my youngest daughter (10 year old). My wife and other son (18 years) are on ILR and still have to go through the Life in UK test and British citizenship process.

My problem is my eldest son who is turning 23 and still in original homeland. Is there any chance of of bringing him over as a dependant so that we can be one family unit? Please advise any requirements that might need to be put in place to facilitate his coming over.

Thanking you for your assistance.

[MPH80]

Not unless he qualifies in his own right for a work/student visa or is disabled/ill such that he requires care that only you can provide.