For this Icey update.. why not play some reindeer games?

Oh hi there Mojang! So this is more of a fun idea since the next update is ice themed. I think it would be fun adding a extra passive mob to the game! In this case Reindeer. They would spawn in snowy plains and in snowy tundras and will be a rideable mob that can be tamed they would Also double as a food source as well, since in a lot of places of extreme cold wheater they Also are a food source. They’re introduction to the game would also come with a new type of plant which is the lichen which is a type moss that would spawn in the biomes mentioned above which would be used for booth breeding also as taming them once tamed they can be rideable by placing a saddle on they’re backs. This is based on the fact that many places in the world Specially in places like northern europe, Siberia and Mongolia have domesticated them to be work/saddle animals, They’re speed and jump would be closer of that of a horse though they would be closer to donkeys since they would not have a special armor like that of horses but will be able to have the ability to anex a chest on there backs like that of donkeys, when killed they would drop a leather and a new type of Meat. And to be honest they would be great for custom holiday maps as well as being useful for players who spawn and live in áreas that horses and donkeys would not spawn in. Soooo that’s all I had in mind. I really hope that you good folks at Mojang consider this idea for the next update or a future update. Thank you for your time!