My club in Sydney has lowered the joining fee in recent years for younger members.
U22s pay $900, 23-24 pay $2000, 25-27 pay $3200, 28-29 pay $5000 and al other new members pay $8000.
I think for young guys, especially those who are married and even moreso have children, an entry fee is more of a hurdle (even if only a mental one) than a high annual fee, which you can justify as you're getting to play golf through that fee, but seeing the reasoning for a joining fee can be more difficult (and much harder to sell to the missus!!).
Lowering that fee for younger golfers seems to have had the effect of getting more guys into the club aged in their 20s who will stick around, and as a byproduct of that there seems to be a much more healthy contingent of good players than most other clubs I am familiar with.
The course redevelopment beginning on Thursday will produce the best practice area in Sydney - we hope - which I think will combine with the factors above to create even more of a pull for young players and better golfers.