As for exchange rate regimes - I understand that this issue may be of particular interest since many foreign investors are present - there are no formal requirements in the pre-accession phase. Each country remains responsible for the chosen exchange rate regime, and a plurality of approaches seems feasible.
Uganda will become one of the most densely populated countries in the world by the middle of this century, when its population will be more than two and a half times the current level. It is quite unlikely that the formal sector will employ a significant share of the population.