I believe so yes, and Scotland tbh.
My understanding, at least as far as Ireland go, is that it’s a conveyer belt where the private schools in Dublin are an integrated part of the Leinster machine and they are essentially rugby academies designed to feed the regions (but mostly Leinster). I could be wrong about that though.
In Scotland, on the other hand, certain private schools poach promising players from Glasgow and Dundee clubs so that they can keep the old boys network happy and impress prospective parents. It also helps them with their charitable status by giving out ‘scholarships’ without having to fill the classrooms with unprofitable working class kids who happen to be a bit clever.
Strathallan School is probably the best example of this type of ‘recruitment’.
So it’s the same idea but implemented in a very different way and with very different outcomes.