Dimmers can be fitted where existing light switches are, and lamps can be fitted with dimmers, either mounted in or on the lamp, or online with the power cable.
It's just a different type of consumer luxury or hobby, unnecessary but also fun and rewarding.
I do hardware modifications and small electrical upgrades / changes myself, it's cheaper and I find it enjoyable and rewarding. Most recently I fit a dimmer to a high velocity ducted workshop fan, so now it has full variable speed control, as it's quite powerful and all the CFM isn't always required or desirable.
It's just a different type of consumer luxury or hobby, unnecessary but also fun and rewarding.
I do hardware modifications and small electrical upgrades / changes myself, it's cheaper and I find it enjoyable and rewarding. Most recently I fit a dimmer to a high velocity ducted workshop fan, so now it has full variable speed control, as it's quite powerful and all the CFM isn't always required or desirable.