My work is mainly overskim
I explain possible pros and cons for different scenarios with long term consequences , eg overskim , gut overboard , insulation , ( mid joists boarding lol) moving lights , sockets , rads etc The decisions then put on them but in most cases they are not doitupandsell so money is not an issue so they let.me do a high spec , especially if they are fitting cupboards and tiles etc themselves , it's all plumb lines and laser levels lol , not uncommon for a kitchen " overskim " for £300 to become £800 but it's their choice