According to Gabe newel, the 7 hour war took place in 2013. if this is the case, and HL2RP takes place in 2016, then there could be children at least 3 years of age in the city. I think the time HL2RP occurs is to be at least 2019 to keep constant with the canon, and at least the *ONLY* possible children could be at the least 6, which is what the model for children looks like. If this is changed, then there could be ragdolls of the children models in random places around the city, so at least the time-ages thing makes sence.