As 18 is the "Legal" age in Australia for children to drink and vote do you think this age should be moved up higher or down lower and why?

Our kids have each a bank account, with money going in by my wealthy father and ourselves, so they already have a nice little nest egg. My sister and I are careers of the money for my kids and her kids money. First my dad and sis agreed they wouold not be allowed to have the money till they have turned 18. A few years after this I decided NO as my son is alsmot 17 and I do not see him mature enough to have such a amount of money at 18. SO I asked them would they both agree to change it till they are 21 and they both agreed.


So I ask this question as when do you think kids are mature enough to do these things, such as drink, smoke blah blah, your own personal opinion, and there will be no judging or debates. I just want to see how many do think it should be up and who dont.


My son thinks I stink because of changing it till he is 21 but I dont want him blowing all that money and wasting it, when he could have enough to put a desposit on a home or car if he works and saves too .


Do you think I am being unfair?