Question to PQE 3 Lawyers and above. What is making you stay at your current firm, instead of deciding to set up your own firm? I've read up on early PQE-success stories like WMH law (not fantastic but they scaled to like 10+ish lawyers within 3 years of building the firm).

Billables (even for senior assocs) far outstrips the average SA pay right? I heard that even Chinatown firms earn 15-20k a month doing low value, high volume work. Why are lawyers content to stay at the mid-sized or big4, where you have to wait 15ish years to make senior partner?