A doctor told you that?
If you have clearly defined reasons for TRT, then by all means. If you have low levels and/or are symptomatic, by all means go for it. Not that I’m an expert, and it’s just my personal opinion, but I would say given the cost/risk/etc associated with TRT, it’s something to do only if you are personally motivated to commit to it. But for sure learning about what’s involved by reading the stickies and threads here is a good start.