I came across a lot of thread where people say "Lack of technical knowledge is the reason why people don't use bitcoins". I need to know why such people think technical knowledge is required to invest in or adopt bitcoin.

Let's say, professor of Arts is given a laptop without any working internet browser can he surf the web. Majority of us cant. The browser makes it look easy. Some of the non-technical people might not know what tls_ecdhe_rsa_with_aes_128_gcm_sha256 Connection encrypted is, that doesn't stop them from banking online.

I don't know what technical knowledge is required to fly an Airbus A380 but I have been a passenger of one, I took the risk and trusted the driver(pilot) to be not drunk.

What normal person consider is risk to reward ratio, how much he will be benefited for taking that risk.  Even while switching a job you might face unemployment but your new job might pay you more.

And assets like gold are consider safe because of its acceptability by masses and not the technical knowledge required to refine gold ore.

I have written a post on how I introduced my village farmers to bitcoins. My village farmers cant even read their bitcoin paper wallet they only know its valve and risk of investing in it. https://bitcointalk.org/index.php?topic=5098721.0