Well, Bitcoin is already popular and while time goes by ,bitcoin continue to make a noise in crypto market that's why it will become more well known in the future. Also it will become more useful in many ways specially as payment method but because of it's higher value I don't think if it will become affordable for everyone specially those people with less capacity to buy bitcoin.
I agree, to an extent. I don't think it'll become more affordable in that 1 bitcoin = 10gbp I believe items that we buy today will cost like 2/3 satoshi's rather than like paying in whole bitcoins