most probably i would like to use it every day for such simple things as buying food or going to the doctor, i want bitcoin to be mainstream
Exactly, thinking about next 20 years would be a weird, its better we concentrate in present and keep on spending our bitcoins on daily basis, either digitally or physically.
Not only that, it's good to focus on contributing. Trying to set up some things etc.
There are many things we can do to spread the message and help bitcoin grow
- Set up nodes
- Set up services
- Spread the word to friends on social media f.e.
- etc.