As has been pointed out, there’s no way to draw a general conclusion from bits and pieces of evidence. However, the potential for different approaches may revolve around these differences:
Protestant belief in “Once Saved Always Saved” could tend toward a false sense of security; however, if one’s heart is truly set on pleasing God and living a holier life, one would hopefully not use that as a way of evading responsibility for one’s sins.
Catholic belief in the Sacraments - Reconciliation and Eucharist both - gives an external significance to our process of accountability for sin, and our belief in the Real Presence should make us take very seriously the need to be in a state of grace before receiving. Some may feel fearful or scrupulous, or on the other hand may not comprehend how serious this obligation is, or resent it as another “rule” and decide to rebel against it and receive anyway.
So regardless of which variant of Christianity one follows, the original or a derivative, the sincerity of the individual human heart on the road to holiness is what determines the chances of living a holy life. Willingness to open one’s heart to the promptings of the Holy Spirit, being accountable rather than lazy, etc. will give God room to work in that person and draw them to Himself.