This is an exact mirror of my experience. I know one person under 35 wishes to leave.
Anyone I speak to over 50 is desperate to leave because they perceive the shared sovereignty as redline that should never be crossed irrespective of the consequences.
Nuances between EU, EEC, Council of Europe, European Court of Human Rights and how leaving the EU does not mean extraditing ourselves from the others, thus stymieing the sovereignty issue so that it is mute is completely lost. We may leave the EU and still be subordinate to the other bodies (including most EU rules to maintain trade compatibility) making the entire exercise a dangerous experiment.