I partially agree with you. I start my chicks in the house. Mainly because I can monitor their feeding and growth easily. I used to use a heat lamp. I was not at all happy nor were my chicks. I then used the heating pad and was much happier and the chicks thrived. By observation I found the chicks knew what they needed. For the first couple of days in the brooder, I left the heater on 24 hours. The chicks spent a good portion of the day under the pad. Coming out to eat and drink. After the 2nd day, I would turn the heat to medium and the chicks spent more time out in the brooder eating, going under the heater mainly at night. By one week, the heater was off all day and on med only at night. In this way, they were quickly weaned from artificial heat. After 1 week, they were transferred to an outside brooder. The heater on med only at night and the chicks grew and thrived. Most of their time was spent eating or hanging out on top of the pad. By the end of week 2 they were transferred to a larger brooder, no artificial heat and only a cozy box with shaving for night time huddling. This has worked for me but I am in SW FL and I brooded the chicks in April/May with night time temps 55-65 degrees. It is a lot warmer in the day. This works for me. I found the chicks feathered out quicker when weaned quickly from artificial heat. They were active, hungry and grew and feathered quickly. I found this an improvement over any chicks raised in a brooder under a heat lamp. When I hear people say they keep their chicks under lights in the house for 6 weeks, I can only shake my head and wonder why. That is an incredible mess and way too much like work.
That's my experience. It may not work for everyone, but yes, chicks are a lot more resilient than many folks give them credit for. :yiipchick