My FIL actively encouraged DH to be lazy. He’d say to me “I can’t believe you are expecting DH to make his own tea,” when DH was going out and was eating before the rest of us.
Also he’d say to me “What you want to do is: paint the kitchen, fix a door etc. DH works hard enough already.”
FIL did everything for MIL, cooking, baking fruit and meat pies (I never knew a man who baked), cleaning, gardening, DIY, shopping, washing,
the lot. MIL wasn’t lazy and did things but FIL wanted to look after her.
No idea why FIL didn’t want his son to be the same. It’s taken me years to get DH to finally do things. I just stopped doing his washing, cooking etc so he had to do it. He’s still a bit hit and miss. Cooks for himself and no one else. Have a week off work and do nothing. Only shops for things for himself unless I know he’s going and give him a list.
My boys are very independent thankfully. They don’t understand why their dad is so lazy.