Stickers and Stamps may be the hardest one yet for me!

oh, really?.. I have so much stickers to post... and I have envelopes with stamps... a huge pile of different cases to choose from. I know that youth generation (with their love and fondness of smartphones, instant messages etc) may do not have even a single envelope or paper letter sent/received, but we... we are a different case! how it can be that you dont have stamps or letters?!?!