Exactly. As I pointed out earlier there are plenty of one-bed places for sale in Brighton at £100,00 or lower. This idea that people need a 3-bed semi as a starter home is crazy, start small and work your way up.
Can I suggest you at least look at one of the thousands of property websites before making incorrect statements. The cheapest I have seen in Brighton is a studio flat at £105k. There is also one at the same price for cash buyers only. After that it is £125k for a one bedroom flat in Brighton. Studios under £100k are possible, one beds extremely rare.