No, while baptism doesn't confer Salvation and isn't required for it, Jesus still did command us to be baptized as an external representation of an inward transformation. That can't apply to an infant, so infant "baptism" isn't truly baptism, but just a baby getting wet.
Also, there's no Biblical precedent for sprinkling in a baptism. A baptism should be a full immersion.
Dr. Jordan B. Cooper does a great job describing why he finds the Baptist view on this misguided, and I encourage you to check it out. There’s very clear evidence the early Church - which still had men who had known the apostles - was liturgical and baptized infants. This whole “true Christianity was lost for a bit until WE figured it out” attitude that Baptists have on this is very … Mormon-esque. There’s a reason ZERO of the Protestant Reformers disagreed with infant baptism.
Yes. The Lutherans, Classical Presbyterians, and the Anglicans still practice infant baptism.