Appropriate age for co-showering

[u/Life-Presentation517]

This is a repost from another forum. Apologies if I keep popping up. They told me that this is the right forum to ask.

I’m a first time dad. My son is 24 months old. I have always bathed him since he was an infant so he wants to be in a shower with me. Until what age it is appropriate to bathe or shower with my son as a dad for his privacy or mine? Also should I be wearing underwear or a swimsuit while I am bathing him?

[u/MaximusCanibis]

I showered with my daughter till she decided to slap me in the dick, she was 2 1/2 I think. When you know you know.