It is good to know that there are some that are giving efforts to introduce and educate others in their community about bitcoin.
In the field of market advertisement of bitcoin, we mostly have allot of ideas, but these ideas are usually just stuck in to our heads, but what the OP has done is a good inspiration to consider. Though, what I could advise is to just conduct seminar to people that are really interested to learn, and not just to have easy money, but willing to absorb knowledge for development as a team.
It may be a small act but it may have a ripple effect. Continue what you are doing OP. I am not good in public speaking but maybe someday I could be able to do what you are doing.
As I mentioned, being a team is what needs to be established here, at the current moment, OP is conducting seminars, but sooner or later, for more audience, being alone will be so hard, but with the help of your team, these things will be possible to happen. We might not know, we could have attract big investors to transition their funds from other investment platforms to cryptocurrencies.