Nobody has any such expectation and most people will remain in the religion they were raised in. That is their loss. Only very few people will become Baha’is for a very long time.
Matthew 7:13-14 Enter through the narrow gate. For wide is the gate and broad is the road that leads to destruction, and many enter through it. But small is the gate and narrow the road that leads to life, and only a few find it.
Just as Christianity was the small gate and the narrow road that led to eternal life in the first centuries when there were few Christians, the Baha'i Faith is now the small gate and the narrow road that leads to eternal life in this age. The Baha’i Faith and is the narrow gate because
only a few people recognize God’s new religion in the beginning and enter through that gate.
In every new age, the religion at the narrow gate is the new religion God wants us to find and follow,
and it is the gate that leads to eternal life. But it is not that easy for most people to find this gate because most people are steeped in religious tradition or attached to what they already believe. If they do not have a religion, most people are suspicious of the new religion and the new messenger. If they are atheists they do not like
the idea of messengers of God or they think they are all phonies.
Jesus told us to enter through the narrow gate, the gate that leads to eternal life, and
He said few people would find that gate... It is narrow, so it is difficult to get through... It is difficult to get through because one has to be willing to give up all their preconceived ideas, have an open mind, and think for themselves. Most people do not normally embark upon such a journey. They go through the wide gate, the easy one to get through – their own religious tradition or their own preconceived ideas about God or no god. They follow that broad road that is easiest for them to travel.
“The Book of God is wide open, and His Word is summoning mankind unto Him. No more than a mere handful, however, hath been found willing to cleave to His Cause, or to become the instruments for its promotion. These few have been endued with the Divine Elixir that can, alone, transmute into purest gold the dross of the world, and have been empowered to administer the infallible remedy for all the ills that afflict the children of men. No man can obtain everlasting life, unless he embraceth the truth of this inestimable, this wondrous, and sublime Revelation.” Gleanings From the Writings of Bahá’u’lláh, p. 183
God is not hidden. If God was hidden most people would not believe in God, but they do. Essentially you are saying you know more than God about how God should communicate which is logically impossible since God is all-knowing. That’s fine if you want to disagree with God’s time honored method of communicating via Messengers, it is no skin off God’s nose because God needs nobody’s belief.
It is not my job to convince anyone to investigate the Baha’i Faith. My job is done when I have delivered the message of Baha’u’llah unless people have questions. Everyone has free will to choose what to investigate and believe.