DPoS is a twist on Proof of Stake consensus that relies upon a group of delegates to validate blocks on behalf of all nodes in the network. Works using witnesses, who generate blocks. Witnesses are elected by stakeholders at a rate of one vote per share per witness. However, with PoA, the appointment of an authority is automatic, meaning that there can be no bias or uneven process caused by unequal stakes. Coin age is irrelevant. All coins that are mature will add the same staking weight (usually 1 in the wallet hover display). Results in stable, consistent interest only for active wallets and only with small inputs. Downtime and large inputs will significantly impact your interest with DPOS. On the plus side, no age means that moving coins is less costly because lost coin age is not detrimental.