Not very good at fighting, too small to ride(except in mobile where you can breed giant battle dodos with fancy attachments to give them special abilities), not very effective gatherers, BUT dodos do have a few uses, they lay eggs better than normal meat and with a much longer spoil timer good for long range traveling, they are quite cute little beasties and can be nice just to keep around, you can also breed fancy dodos as decorative pets and egg producers and in PVP servers these fancy dodos serve a practical purpose: if you have enough fancy enough dodos more strategic and practical enemies will think twice about attacking you as you'll have to have been patient and with plenty of resources if you have all those fancy dodos so you might have stronger thoroughbred beasts for combat, getting ocean loot drops for ascendant weaponry and spelunking and mountaineering for the best resources.
For the guy who said that it would be cool if a dodo could sit on your shoulder: on ark mobile, a dodo smaller than .75 can in fact be carried on your shoulder. Dodos over 2.6 can be ridden. Fun fact. :)
Dodos are good at helping you get an oviraptor. They produce dodo eggs, which oviraptors eat. You can kill the ones in the wild and harvest raw meat which oviraptors also eat. And remember, to tame and oviraptor first KO it, then feed it eggs and raw meat. Plz like!